3. | iiiContentsList of figures vi 2.7 ITIL conformance or compliance – practice adaptation 13List of tables viii 2.8 Getting started – Service Lifecycle principles 14OGC’s foreword ix 3 The ITIL Service ManagementChief Architect’s foreword x Lifecycle – core of practice 17 3.1 Functions and Processes across the lifecycle 20Preface xi 4 Service Strategy – governance and1 Introduction 1 decision-making 23 1.1 A historical perspective of IT service management and ITIL 3 4.1 Strategic assessment 25 1.2 ITIL today 3 4.2 Developing strategic capabilities 27 1.3 The ITIL value proposition 4 4.3 Service Provider types – matching need to capability 27 1.4 The ITIL service management practices 4 4.4 Services as assets – value creation 28 1.5 What is a service? 5 4.5 Defining the market space 29 1.6 Navigating the ITIL Service 4.6 Service Portfolios 30 Management Lifecycle 5 4.7 Service outsourcing – practical decision-making 332 Core guidance topics 9 4.8 Return on investment (ROI) 35 2.1 Service Strategy 11 4.9 Financial Management 36 2.2 Service Design 11 4.10 Increasing service potential 38 2.3 Service Transition 12 4.11 Organizational development 39 2.4 Service Operation 12 2.5 Continual Service Improvement 12 2.6 Lifecycle quality control 13
4. iv | Contents 5 Service Design – building structural 7 Service Operation 91 service integrity 43 7.1 Business value 94 5.1 Business value 46 7.2 Event Management 94 5.2 Five aspects of Service Design 46 7.3 Incident Management 96 5.3 Identifying service requirements 47 7.4 Request Fulfilment 99 5.4 Service Design models 48 7.5 Problem Management 101 5.5 Delivery model options 49 7.6 Access Management 105 5.6 Service Catalogue Management 50 7.7 Service Operation functions 106 5.7 Service Level Management 52 7.8 IT Operations Management 116 5.8 Capacity Management 55 7.9 Application Management 117 5.9 Availability Management 60 7.10 Service Operation and project 5.10 IT Service Continuity Management 64 management 121 5.11 Information Security Management 66 7.11 Assessing and managing risk in Service Operation 122 5.12 Supplier Management 70 7.12 Operational staff in Service Design and Transition 122 6 Service Transition – preparing for change 73 8 Continual Service Improvement 125 6.1 Transition Planning and Support 76 8.1 Purpose of CSI 125 6.2 Change Management 80 8.2 CSI objectives 126 6.3 Asset and Configuration Management 83 8.3 Business drivers 128 6.4 Release and Deployment 8.4 Technology drivers 128 Management 86 8.5 Service measurement 129 6.5 Service Validation and Testing 8.6 Continual Service Improvement Releases 88 processes 129 8.7 Service reporting 140
5. Contents | v9 Complementary guidance 145 9.1 ITIL and other frameworks, practices and standards 14510 The ITIL Service Management Model 149 10.1 Model element types 149 10.2 Basic elements 151 10.3 Creating a service 155 10.4 Strategy generation 155 10.5 Deciding the course of action to create a new service 158Acronyms 173Glossary 177Index 227
6. vi | List of figures Figure 2.1 The Deming Quality Cycle Figure 6.1 The Service Transition process Figure 3.1 The ITIL Service Lifecycle Figure 6.2 Normal Change Model Figure 3.2 Process architecture Figure 6.3 Service Asset and Configuration Management – interfaces to the lifecycle Figure 3.3 Continual feedback loop Figure 6.4 Example of a release package Figure 4.1 Service Provider capabilities and resources Figure 6.5 Service testing and validation Figure 4.2 Actionable components of service definitions in terms of utility Figure 7.1 The Event Management process Figure 4.3 Service Portfolio Figure 7.2 The Incident Management process flow Figure 4.4 Elements of a Service Portfolio and Service Figure 7.3 The Problem Management process flow Catalogue Figure 7.4 Single monitor control loop Figure 4.5 Service Portfolio management Figure 7.5 Complex monitor control loop Figure 4.6 Business impact and ROI outcome Figure 7.6 ITSM monitor control loop Figure 5.1 Design dependencies Figure 7.7 Role of Application Management in the Figure 5.2 Service Catalogue elements application lifecycle Figure 5.3 The Service Level Management process Figure 8.1 Continual Service Improvement model Figure 5.4 Component-based Service Level Package Figure 8.2 Seven-step Improvement Process Figure 5.5 Capacity Management elements Figure 8.3 Number of incident tickets opened over time Figure 5.6 The Availability Management process Figure 8.4 Service reporting process Figure 5.7 Relationship between levels of availability Figure 10.1 Service Management Model element types and overall costs Figure 10.2 Service Lifecycle governance and operational Figure 5.8 Service Continuity lifecycle elements Figure 5.9 IT Security Management process Figure 10.3 Typical Type I Service Provider interactions Figure 5.10 Supplier Management – roles and interfaces Figure 10.4 Type II Service Provider interactions Figure 10.5 Type III Service Provider interactions Figure 10.6 Basic Service Management Model process elements
7. List of figures | viiFigure 10.7 ITIL Service Lifecycle main practice elementsFigure 10.8 Forming and formulating a Service StrategyFigure 10.9 The Service PortfolioFigure 10.10 Stage 1 – Service Strategy elementsFigure 10.11 Stage 2 – Design service solutionFigure 10.12 Stage 3 – Transition the serviceFigure 10.13 Change Management elementsFigure 10.14 Normal Change Management processFigure 10.15 Information flows at the Service Transition stageFigure 10.16 Stage 4 – Operate the serviceFigure 10.17 The Event Management processFigure 10.18 The Incident Management process flowFigure 10.19 Information flow in the Service Operation stageFigure 10.20 Stage 5 – Continual Service ImprovementFigure 10.21 Information flow within Continual Service ImprovementFigure 10.22 Integrated lifecycle elements flowFigure 10.23 Layered view of the main elements in the Service Lifecycle
8. viii | List of tables Table 2.1 Roles and core guides Table 4.1 Factors in strategic assessment Table 4.2 Types of sourcing structures Table 4.3 Example of increased Service Potential Table 4.4 Basic organizational structures for types of service strategies Table 5.1 Delivery model options Table 8.1 Service metric examples
9. | ixOGC’s forewordAs co-founder of the ITIL concept and leader of its earlydevelopment, I’m delighted by the positive impact it hasmade on companies and organizations around the world.What began as a UK government initiative to set out anefficient, successful and reliable approach to servicemanagement is now a global endeavour, withpublications, training and support tools available in variouslanguages. Of course, successful growth doesn’t happenby chance and ITIL has proven itself many times overthrough the benefits it brings to the businesses thatembed its practices.Since its creation in the late 1980s, ITIL has beendeveloped to keep up to date with a constantly changingservice management environment. Here in the latestversion, I am pleased to see a top-quality product.Consultation with experts on a global scale brings youleading practices, identified through experience andbrought together with the skills and expertise of ourpublishing partner, The Stationery Office (TSO).I believe ITIL will continue to play an important role withingovernment as an effective standard framework fordelivery. However, the real value in ITIL is that its benefitsare available to every organization, large or small, with agenuine desire to deliver a high-performing serviceprovision. May your organization be one of those!John StewartOffice of Government Commerce
10. x | Chief Architect’s foreword This book is dedicated to the people who practise IT service management. Through their knowledge and experiences we have shaped the present and can see further toward the future along our journey to service excellence. Over the past two decades the world of IT has changed dramatically. The IT Infrastructure Library framework has grown along with it and has shaped a community of practice that has spawned an entire industry. What hasn’t changed in all that time is the need for us as practitioners of service management to learn how best practices evolve and how they support and influence the customer’s successes or failures. In a world of growing complexity, choice and globalization, ITIL has remained at the heart of the industry, growing and evolving to meet the needs of service providers. The current version of ITIL is a product of this evolution. Within the pages of this book, we will introduce ITIL to the novice, further educate the practitioner and transform our understanding of IT service management best practices. This book captures the basic concepts of the ITIL Service Lifecycle and its benefits. It serves as a reference to ITIL service management practices, but should not be considered a substitute for the ITIL core practice set. It is from here we begin the journey into the ITIL service management practices. Sharon Taylor Chief Architect, ITIL Service Management Practices
11. | xiPrefaceLife-cycle (noun) – The various stages through which a Adulthood – where we hone our skills and perform withinliving thing passes (Kernerman English Multilingual expected societal parameters. We strive to improve ourDictionary) capabilities continually and define our value. By this time, we have built a complex network of relationships andThe very term ‘lifecycle’ is used to describe the evolution dependencies to others. The world we live in has becomeof many living things in this world from their creation to far more complex than in childhood and managing ourexpiration. The time between creation and expiration is lives more challenging.the ‘journey’. If you replace the human metaphor above with theWe need only look at our own life journeys to see a living lifecycle of service management, you will see manyexample. similarities. This is because the ITIL Service LifecycleCreation – the first part of our journey. As an embryo represents the same evolution – from creation todevelops, its life blueprint is being established through the expiration – and the stages in the ITIL Service Lifecycle arearchitecture of its DNA. The embryo’s genetic structure will what fall in between.dictate its capability, propensity for immunity or We often forget that services are living things. Theyvulnerability to disease, and certain personality require sustenance to survive, they must continually adaptcharacteristics it will carry throughout life. and evolve with changing needs of the business, and theyChildhood – the formative stage. We are influenced by our will pass through various stages over their lifetime.exposure to the world around us and can influence our Services are constrained by their genetic blueprint – risks,life blueprint in how we manifest and integrate ourselves financial investment, culture and economics – but shouldwith the world around us. Our understanding of our evolve to influence their value through interaction,needs, both for growth and creativity, are our evolution, dependencies and relationships, and to exploit‘requirements’ that allow us to create value for ourselves these for positive outcomes.and those who come into contact with us. This book will take you through these Service Lifecycle stages and show how to apply the knowledge contained in the ITIL core lifecycle publications.
12. Introduction 1
13. | 31 Introduction1.1 A HISTORICAL PERSPECTIVE OF IT the itSMF has members worldwide as ITIL’s popularity SERVICE MANAGEMENT AND ITIL continues to grow.IT service management (ITSM) evolved naturally as services A formal standard for ITSM, The British Standard 15000,became underpinned in time by the developing largely based on ITIL practices, was established andtechnology. In its early years, IT was mainly focused on followed by various national standards in numerousapplication development – all the new possibilities countries. Since then the ISO 20000:2005 Standard wasseeming to be ends in themselves. Harnessing the introduced and gained rapid recognition globally.apparent benefits of these new technologies meant ITIL’s next revision began in the mid 1990s, until 2004.concentrating on delivering the created applications as a Version 2 of ITIL, as it is commonly referred to, was a morepart of a larger service offering, supporting the business targeted product – with nine books – explicitly bridgingitself. the gap between technology and business, and withDuring the 1980s, as the practice of service management guidance focused strongly on the processes required togrew, so too did the dependency of the business. Meeting deliver effective services to the business customer.the business need called for a more radical refocus for anIT service approach and the ‘IT help desk’ emerged to deal 1.2 ITIL TODAYwith the frequency of issues suffered by those trying touse IT services in delivery of their business. In 2004, the OGC began the second major refresh initiative of ITIL, in recognition of the massive advancements inAt the same time, the UK government, fuelled by a need technology and emerging challenges for IT servicefor finding efficiencies, set out to document how the best providers. New technology architectures, virtualization andand most successful organizations approached service outsourcing became a mainstay of IT and the process-management. By the late 1980s and early 1990s, they had based approach of ITIL needed to be revamped to addressproduced a series of books documenting an approach to service management challenges.the IT service management needed to support businessusers. This library of practice was entitled the IT After twenty years ITIL remains the most recognizedInfrastructure Library – ITIL to its friends. framework for ITSM in the world. While it has evolved and changed its breadth and depth, it preserves theThe original Library grew to over 40 books, and started a fundamental concepts of leading practice.chain reaction of interest in the UK IT service community.The term ‘IT service management’ had not been coined at 1.2.1 Why is ITIL so successful?this point, but became a common term around the mid ITIL is intentionally composed of a common sense1990s as the popularity of ITIL grew. In 1991, a user forum, approach to service management – do what works. Andthe IT Information Management Forum (ITIMF), was what works is adapting a common framework of practicescreated to bring ITIL users together to exchange ideas and that unite all areas of IT service provision toward a singlelearn from each other, and would eventually change its aim – delivering value to the business. The following listname to the IT Service Management Forum (itSMF). Today,
14. 4 | Introduction defines the key characteristics of ITIL that contribute to its customer needs, but from predicting them through global success: preparation, analysis and examining customer usage patterns. Non-proprietary – ITIL service management practices are applicable in any IT organization because they are The next significant characteristic is the systematic use of not based on any particular technology platform, or service management practices that are responsive, industry type. ITIL is owned by the UK government and consistent and measurable, and define the provider’s not tied to any commercial proprietary practice or quality in the eyes of their customers. These practices solution provide stability and predictability, and permeate the Non-prescriptive – ITIL offers robust, mature and service provider’s culture. time-tested practices that have applicability to all types The final characteristic is the provider’s ability to of service organizations. It continues to be useful and continuously analyse and fine tune service provision to relevant in public and private sectors, internal and maintain stable, reliable yet adaptive and responsive external service providers, small, medium and large services that allow the customer to focus on their business enterprise, and within any technical environment without concern for IT service reliability. Best practice – ITIL service management practices represent the learning experiences and thought In these situations you see a trusted partnership between leadership of the world’s best in class service providers the customer and the service provider. They share risk and reward and evolve together. Each knows they play a role Good practice – Not every practice in ITIL can be in the success of the other. considered ‘best practice’, and for good reason. For many, a blend of common, good and best practices As a service provider, this is what you want to achieve. As are what give meaning and achievability to ITSM. In a customer, this is what you want in a service provider. some respects, best practices are the flavour of the Take a moment look around at the industry high- day. All best practices become common practices over performing service providers. You’ll see that most use ITIL time, being replaced by new best practices. Service Management practices. This isn’t coincidence at all. 1.3 THE ITIL VALUE PROPOSITION 1.4 THE ITIL SERVICE MANAGEMENT All high-performing service providers share similar PRACTICES characteristics. This is not coincidence. There are specific When we turn on a water tap, we expect to see water flow capabilities inherent in their success that they demonstrate from it. When we press down a light switch, we expect to consistently. A core capability is their strategy. If you were see light fill the room. Not so many years ago these very to ask a high-achieving service provider what makes them basic things were not as reliable as they are today. We distinctive from their competitors, they would tell you that know instinctively that the advances in technology have it is their intrinsic understanding of how they provide made them reliable enough to be considered a utility. But value to their customers. They understand the customer’s it isn’t just the technology that makes the services reliable. business objectives and the role they play in enabling It is how they are managed. This is service management! those objectives to be met. A closer look would reveal that their ability to do this does not come from reacting to
15. Introduction | 5The use of IT today has become the utility of business. community of individuals and organizations in the publicSimply having the best technology will not ensure it and private sectors fosters its growth and maturity. Formalprovides utility-like reliability. Professional, responsive, schemes exist for the education, training and certificationvalue-driven service management is what brings this of practising organizations, and individuals influence itsquality of service to the business. quality. Industry best practices, academic research and formal standards contribute to its intellectual capital andThe objective of the ITIL Service Management practice draw from it.framework is to provide services to business customersthat are fit for purpose, stable and that are so reliable, the The origins of service management are in traditionalbusiness views them as a trusted utility. service businesses such as airlines, banks, hotels and phone companies. Its practice has grown with theITIL offers best practice guidance applicable to all types of adoption by IT organizations of a service-orientedorganizations who provide services to a business. Each approach to managing IT applications, infrastructure andpublication addresses capabilities having direct impact on processes. Solutions to business problems and support fora service provider’s performance. The structure of the core business models, strategies and operations are increasinglypractice takes form in a Service Lifecycle. It is iterative and in the form of services. The popularity of shared servicesmultidimensional. It ensures organizations are set up to and outsourcing has contributed to the increase in theleverage capabilities in one area for learning and number of organizations who are service providers,improvements in others. The core is expected to provide including internal organizational units. This in turn hasstructure, stability and strength to service management strengthened the practice of service management and atcapabilities with durable principles, methods and tools. the same time imposed greater challenges upon it.This serves to protect investments and provide thenecessary basis for measurement, learning and Definition of a serviceimprovement. A ‘service’ is a means of delivering value to customers by facilitating outcomes customers want to achieveThe guidance in ITIL can be adapted for use in various without the ownership of specific costs and risks.business environments and organizational strategies. Thecomplementary guidance provides flexibility to implement There are a variety of contexts in which the definition ofthe core in a diverse range of environments. Practitioners a service can be expanded upon, but as a basiccan select complementary guidance as needed to provide concept, service is the means of delivering value, andtraction for the core in a given business context, much like no matter how your organization chooses to define atyres are selected based on the type of automobile, service, this must be at the heart of what defines apurpose and road conditions. This is to increase the service.durability and portability of knowledge assets and toprotect investments in service management capabilities. 1.6 NAVIGATING THE ITIL SERVICE MANAGEMENT LIFECYCLE1.5 WHAT IS A SERVICE? Before discussing the principles of ITIL serviceService management is more than just a set of capabilities. management practices, it is helpful to understand theIt is also a professional practice supported by an extensive overall content structure and how topics areas arebody of knowledge, experience and skills. A global
16. 6 | Introduction organized within each of the books that together Lifecycle processes and activities comprise the practices. The Service Lifecycle stages rely on processes to execute The ITIL service management practices are comprised of each element of the practice in a consistent, measurable, three main sets of products and services: repeatable way. Each core publication identifies the processes it makes use of, how they integrate with the ITIL service management practices – core guidance other stages of the lifecycle, and the activities needed to ITIL service management practices – complementary carry them out. guidance ITIL web support services. Supporting organization structures and roles Each publication identifies the organizational roles and 1.6.1 ITIL service management practices – responsibilities that should be considered to manage the core guidance Service Lifecycle. These roles are provided as a guideline The core set consists of six publications: and can be combined to fit into a variety of organization structures. Suggestions for optimal organization structures Introduction to ITIL Service Management Practices are also provided. (this publication) Service Strategy Technology considerations Service Design ITIL service management practices gain momentum when Service Transition the right type of technical automation is applied. Each Service Operation lifecycle publication makes recommendations on the areas Continual Service Improvement. to focus technology automation on, and the basic A common structure across all the core guidance requirements a service provider will want to consider publications helps to easily find references between when choosing service management tools. volumes and where to look for similar guidance topics within each stage of the lifecycle: Practice implementation For organizations new to ITIL, or those wishing to improve Practice fundamentals their practice maturity and service capability, each This section of each core publication sets out the business publication outlines the best ways to implement the ITIL case argument of the need for viewing service Service Lifecycle stage. management in a lifecycle context and an overview of the practices in that stage of the lifecycle that contributes to Challenges, risks and critical success factors it. It briefly outlines the context for the practices that These are always present in any organization. Each follow and how they contribute to business value. publication highlights the common challenges, risks and success factors that most organizations experience and Practice principles how to overcome them. Practice principles are the policies and governance aspects of that lifecycle stage that anchor the tactical processes and activities to achieving their objectives.
17. Introduction | 7Complementary guidanceThere are many external methods, practices andframeworks that align well to ITIL practices. Eachpublication provides a list of these and how theyintegrate into the ITIL Service Lifecycle, when they areuseful and how.Examples and templatesEach publication provides working templates andexamples of how the practices can be applied. They areprovided to help you capitalize on the industry experienceand expertise already in use. Each can be adapted withinyour particular organizational context.1.6.2 ITIL service management practices – complementary guidanceThis is a living library of publications with guidancespecific to industry sectors, organization types, operatingmodels and technology architectures. Each publicationsupports and enhances the guidance in the ITIL core.Publications in this category will be continually added tothe complementary library of practice and will containcontributions from the expert and user ITSM community.In this way, ITIL practices are illustrated in real-lifesituations and in a variety of contexts that add value andknowledge to your own ITIL practice.1.6.3 ITIL web support servicesThese products are online, interactive services including aGlossary of Terms and Definitions, Interactive ServiceManagement Model, online subscriber services, casestudies, templates and ITIL Live® (www.itil-live-portal.com),an interactive expert knowledge centre where users canaccess time with ITSM experts to discuss questions andissues, and seek advice.
18. Core guidance topics 2
19. | 112 Core guidance topics serving customers and market spaces, and to identify, entary Publica select and prioritize opportunities. Service Strategy is m plem tion about ensuring that organizations are in position to Co s Continual Service Improvement handle the costs and risks associated with their service portfolios, and are set up not just for operational Service Design effectiveness but for distinctive performance. Service Strategy Organizations already practicing ITIL use Service Strategy to guide a strategic review of their ITIL-based service ITIL management capabilities and to improve the alignment Service Operation Service between those capabilities and their business strategies. me ce Transition Co mpro ve ervi This ITIL volume encourages readers to stop and think nti nt I pro l S nu vem Im inua al about why something is to be done before thinking of Se nt nt rvi Co e ce how. We es b Su vic pport Ser 2.2 SERVICE DESIGN ‘If you build it, they will come’ is a saying from a famous2.1 SERVICE STRATEGY 1989 Hollywood movie, Field of Dreams. But if you build it and it doesn’t provide value, they will soon leave!At the core of the Service Lifecycle is Service Strategy. For services to provide true value to the business, theyService Strategy provides guidance on how to view service must be designed with the business objectives in mind.management not only as an organizational capability but Service Design is the stage in the lifecycle that turnsas a strategic asset. Guidance is provided on the principles Service Strategy into the blueprint for delivering theunderpinning the practice of service management which business objectives.are useful for developing service management policies,guidelines and processes across the ITIL Service Lifecycle. Service Design provides guidance for the design and development of services and service managementTopics covered in Service Strategy include the practices. It covers design principles and methods fordevelopment of service markets, characteristics of internal converting strategic objectives into portfolios of servicesand external provider types, service assets, the service and service assets. The scope of Service Design is notportfolio and implementation of strategy through the limited to new services. It includes the changes andService Lifecycle. Financial Management, Demand improvements necessary to increase or maintain value toManagement, Organizational Development and Strategic customers over the lifecycle of services, the continuity ofRisks are among other major topics. services, achievement of service levels, and conformanceOrganizations should use Service Strategy guidance to set to standards and regulations. It guides organizations onobjectives and expectations of performance towards
20. 12 | Core guidance topics how to develop design capabilities for service 2.4 SERVICE OPERATION management. Service Operation embodies practices in the management Among the key topics in Service Design are Service of the day-to-day operation of services. It includes Catalogue, Availability, Capacity, Continuity and Service guidance on achieving effectiveness and efficiency in the Level Management. delivery and support of services to ensure value for the customer and the service provider. Strategic objectives are 2.3 SERVICE TRANSITION ultimately realized through Service Operation, therefore making it a critical capability. Guidance is provided on Transition [tran-zish-uhn] – Movement, passage, or how to maintain stability in service operations, allowing change from one position, state, stage, subject, concept, for changes in design, scale, scope and service levels. etc., to another; change: the transition from adolescence Organizations are provided with detailed process to adulthood. guidelines, methods and tools for use in two major control Service Transition provides guidance for the development perspectives: reactive and proactive. Managers and and improvement of capabilities for transitioning new and practitioners are provided with knowledge allowing them changed services into live service operation. This to make better decisions in areas such as managing the publication provides guidance on how the requirements of availability of services, controlling demand, optimizing Service Strategy encoded in Service Design are effectively capacity utilization, scheduling of operations and fixing realized in Service Operation while controlling the risks of problems. Guidance is provided on supporting operations failure and disruption. through new models and architectures such as shared services, utility computing, web services and mobile The publication combines practices in Change, commerce. Configuration, Asset, Release and Deployment, Programme and Risk Management and places them in the practical Among the topics in this book are Event, Incident, context of service management. It provides guidance on Problem, Request, Application and Technical Management managing the complexity related to changes to services practices. This book discusses some of the newer industry and service management processes; preventing undesired practices to manage virtual and service-oriented consequences while allowing for innovation. Guidance is architectures. provided on transferring the control of services between customers and service providers. 2.5 CONTINUAL SERVICE IMPROVEMENT Service Transition introduces the Service Knowledge Continual Service Improvement provides instrumental Management System, which builds upon the current data guidance in creating and maintaining value for customers and information within Configuration, Capacity, Known through better design, transition and operation of services. Error, Definitive Media and Assets systems and broadens It combines principles, practices and methods from quality the use of service information into knowledge capability management, change management and capability for decision and management of services. improvement. Organizations learn to realize incremental and large-scale improvements in service quality, operational efficiency and business continuity. Guidance is provided for linking improvement efforts and outcomes
21. Core guidance topics | 13with service strategy, design and transition. A closed-loop The ITIL framework incorporates the Deming Quality Cyclefeedback system, based on the Plan-Do-Check-Act (PDCA) by applying it to the Service Lifecycle stages. This helpsmodel (see section 2.6), is established and capable of align the practices of ITIL to the structure of externalreceiving inputs for improvements from any planning practices such as COBIT and ISO/IEC 20000.perspective.Guidance on Service Measurement, demonstrating value 2.7 ITIL CONFORMANCE OR COMPLIANCE –with metrics, developing baselines and maturity PRACTICE ADAPTATIONassessments are among the key topics. An important aspect of ITIL is the ‘open-source’ nature of its practices. It is intended and strongly recommended2.6 LIFECYCLE QUALITY CONTROL that organizations adapt ITIL practices within their ownConsistent with the structures adopted by high-performing context, and entrench their own best practices within anbusinesses today and standards bodies around the world, overall Service Management framework.the ITIL Service Lifecycle approach embraces and enhances For example, within Service Transition, ITIL provides athe interpretation of the Deming Quality Cycle (Figure 2.1) selection of Change Management models for standard,of Plan-Do-Check-Act. You will see this quality cycle used normal and emergency Changes. In many cases, thesein the structure of the practices in each of the core guides. models as described in Service Transition may be all you need and they cover the range of possible change types inFigure 2.1 The Deming Quality Cycle Continuous quality control and consolidation Plan Project Plan Do Project Check Audit Act New Actions Maturity Level ACT PLAN Business IT Alignment CHECK DO Effective Quality Improvement Consolidation of the level reached i.e. Baseline Time Scale
22. 14 | Core guidance topics an organization. Within each model, a specific flow of practices of ITIL and fit well into any organization’s service process and procedure is provided. If in your organization, practices. more steps for an emergency change make sense to meet your requirements and objectives, then you should adapt 2.8 GETTING STARTED – SERVICE LIFECYCLE these into the generic ITIL Change process flow. Doing so does not mean you no longer conform to ITIL. As long as PRINCIPLES the main ITIL process steps, inputs and outputs are In the following chapters you will learn about the key included and the objectives met, that is your best practice concepts within the ITIL Service Lifecycle. You begin by and is fit for purpose in your organizational context. working your way from the core of the lifecycle, Service ITIL is a framework an organization conforms to, not Strategy, then around the revolving lifecycle practices of complies with. There is a major difference between these Service Design, Transition and Operation, finishing with two things and one that is often misunderstood. Continual Service Improvement. Afterward, you should have a clear understanding of the basic concepts of the Conformity allows flexibility in the adaptation of practices ITIL Service Lifecycle and how the core practice within an organizational context while maintaining the publications can be useful to you. This will help readers to overall structure of the framework. Compliance is highly further examine particular areas within any of the core specific, often audited to a formal standard and the guidance books that offer detailed practice information in organization’s practices must mimic externally defined areas that support your day-to-day service management practices. There is a need for both within certain contexts, role. but a key to agile service management practices is knowing which, in what blend and in what context The following table gives a general view of some of the conformance or compliance should apply. more common roles in organizations and the ITIL service management practice core guides that host the day-to-day Many organizations use ITIL as a means to achieve practices, processes and activities most related to those compliance with a formal, audited standard such as roles. ISO/IEC 20000:2005. The design of ITIL is particularly useful for this purpose since the framework is architected to ensure that an organization’s service capabilities are designed and operated using the practices that align to these standards. This standard set outs the key areas of compliance and requires that organizations can demonstrate that they use the management systems and practices in these areas in order to be compliant to the standard. Experts agree that adopting ITIL produces a framework best suited to achieving ISO/IEC 20000 certification. Later in this book a list of common external frameworks, method and standards are provided that have a solid alignment to the
23. Core guidance topics | 15Table 2.1 Roles and core guidesRole Core guideService Desk Manager/staff Service OperationIncident Manager/Technical Support staff Service Transition and Service OperationOperations Management Service Transition and Service OperationChange Manager/Change Requestor Service TransitionSolution Development Service DesignTesting/Production Assurance Service Transition and Service OperationService Level Manager All core publicationsApplication/Infrastructure Architect All core publicationsSupplier Relationship Management Service DesignIT Steering/Governance Service Strategy, Service DesignCIO/IT Director All core publicationsIT Service Manager All core publicationsPortfolio Manager All core publicationsNOTE: It is extremely important to reiterate that no one core book exists in isolation, just as no one part of service management practice does.Organizations interested in adopting ITIL or further maturing their current ITIL practice must consider the lifecycle in its entirety and the benefitall five of the core books provide. Just as this Introduction book is not a substitute for the core library, one core guide alone is not sufficient toadopt and use the practices to their full potential.
24. The ITIL ServiceManagement Lifecycle – core of practice 3
25. | 193 The ITIL Service Management Lifecycle – core of practiceThe Service Lifecycle contains five elements as shown in ensures that as business demand changes with businessFigure 3.1, each of which rely on service principles, need, the services can adapt and respond effectively toprocesses, roles and performance measures. The Service them.Lifecycle uses a hub and spoke design, with Service At the heart of the Service Lifecycle is the key principle –Strategy at the hub, Service Design, Transition and all services must provide measurable value to businessOperation as the revolving lifecycle stages, and anchored objectives and outcomes. ITIL Service Management focusesby Continual Service Improvement. Each part of the on business value as its prime objective. Each practicelifecycle exerts influence on the other and relies on the revolves around ensuring that everything a serviceother for inputs and feedback. In this way, a constant set provider does to manage IT services for the businessof checks and balances throughout the Service LifecycleFigure 3.1 The ITIL Service Lifecycle Service Transition Service Strategy Service Service Design Operation Continual Service Improvement
26. 20 | The ITIL Service Management Lifecycle – core of practice customer can be measured and quantified in terms of Functions typically define roles and the associated authority business value. This has become extremely important and responsibility for a specific performance and outcomes. today as IT organizations must operate themselves as Coordination between functions through shared processes businesses in order to demonstrate a clear return on is a common pattern in organization design. Functions tend investment and equate service performance with business to optimize their work methods locally to focus on assigned value to the customer. outcomes. Poor coordination between functions combined with an inward focus leads to functional silos that hinder alignment and feedback critical to the success of the 3.1 FUNCTIONS AND PROCESSES ACROSS organization as a whole. Process models help avoid this THE LIFECYCLE problem with functional hierarchies by improving cross- functional coordination and control. Well-defined processes 3.1.1 Functions can improve productivity within and across functions. Functions are units of organizations specialized to perform certain types of work and responsible for specific 3.1.2 Processes outcomes. They are self-contained with capabilities and Processes are examples of closed-loop systems because resources necessary to their performance and outcomes. they provide change and transformation towards a goal, Capabilities include work methods internal to the and use feedback for self-reinforcing and self-corrective functions. Functions have their own body of knowledge, action (Figure 3.2). It is important to consider the entire which accumulates from experience. They provide process or how one process fits into another. structure and stability to organizations. Figure 3.2 Process architecture Data, information Process and knowledge Suppliers Activity 1 Desired Activity 2 outcome Customer Activity 3 Service control and quality Trigger
27. The ITIL Service Management Lifecycle – core of practice | 21Process definitions describe actions, dependencies and The combination of multiple perspectives allows greatersequence. Processes have the following characteristics: flexibility and control across environments and situations. The lifecycle approach mimics the reality of most They are measurable and are performance driven. organizations where effective management requires the Managers want to measure cost, quality and other use of multiple control perspectives. Those responsible for variables while practitioners are concerned with the design, development and improvement of processes duration and productivity. for service management can adopt a process-based They have specific results. The reason a process exists control perspective. For those responsible for managing is to deliver a specific result. This result must be agreements, contracts and services may be better served individually identifiable and countable. by a lifecycle-based control perspective with distinct They deliver to customers. Every process delivers its phases. Both these control perspectives benefit from primary results to a customer or stakeholder. They may systems thinking. Each control perspective can reveal be internal or external to the organization but the patterns that may not be apparent from the other. process must meet their expectations. They respond to a specific event. While a process may 3.1.4 Feedback throughout the Service be ongoing or iterative, it should be traceable to a Lifecycle specific trigger. The strength of the ITIL Service Lifecycle rests upon continual feedback throughout each stage of the lifecycle.3.1.3 Specialization and coordination across This feedback ensures that service optimization is the lifecycle managed from a business perspective and is measured inSpecialization and coordination are necessary in the terms of the value business derives from services at anylifecycle approach. Feedback and control between the point in time through the Service Lifecycle. The ITILfunctions and processes within and across the elements of Service Lifecycle is non-linear in design. At every point inthe lifecycle make this possible. The dominant pattern in the Service Lifecycle, monitoring, assessment and feedbackthe lifecycle is the sequential progress starting from flows between each stage of the lifecycle which driveService Strategy (SS) through Service Delivery (SD) – decisions about the need for minor course corrections orService Transition (ST) – Service Operation (SO) and back major service improvement initiatives. The following figureto SS through Continual Service Improvement (CSI). That, illustrates some examples of the continual feedbackhowever, is not the only pattern of action. Every element system built into the ITIL Service Lifecycle.of the lifecycle provides points for feedback and control.
28. 22 | The ITIL Service Management Lifecycle – core of practice Figure 3.3 Continual feedback loop Service Strategies Strategies, Policies, Standards Feedback Lessons Learned Feedback for Improvement Lessons Learned for Improvement Service Design Output Plans to create and modify services and service Feedback management processes Feedback Lessons Learned for Improvement Lessons Learned for Improvement Service Transition Manage the transition of a Output new or changed service and/or service management Feedback process into production Lessons Learned for Improvement Service Operation Day-to-day operations of Output services and service management processes Continual Service Improvement Activities are embedded in the service lifecycle
29. Service Strategy – governance and decision-making 4
30. | 254 Service Strategy – governance and decision-making Requirements The business/customers Service Objectives from Strategy Resource and Requirements Constraints Policies StrategiesAs the core of the ITIL Service Lifecycle, Service Strategy Defining the service marketsets the stage for developing a service provider’s core Developing service offeringscapabilities. This chapter will discuss a selection of the key Financial Managementconcepts from the Service Strategy book to help aid the Service Portfoliosunderstanding of the role of Service Strategy in the ITIL Demand ManagementService Lifecycle. Service assessmentImagine you have been given responsibility for an IT Return on investment.organization. This organization could be internal orexternal, commercial or not-for-profit. How would you goabout deciding on a strategy to serve customers? What if 4.1 STRATEGIC ASSESSMENTyou have a variety of customers, all with specific needs In crafting a service strategy, a provider should first take aand demands? How do you define your service strategy to careful look at what it does already. It is likely theremeet all of them? already exists a core of differentiation. An establishedService Strategy provides guidance to help answer that service provider frequently lacks an understanding of itskey question. It is comprised of the following key own unique differentiators. The following questions canconcepts. help expose a service provider’s distinctive capabilities: Value creation Which of our services or service varieties are the most Service assets distinctive? Service Provider types Are there services that the business or customer cannot Service capabilities and resources easily substitute? The differentiation can come in the form Service structures of barriers to entry, such as the organization’s know-how
31. 26 | Service Strategy – governance and decision-making of the customer’s business or the broadness of service Which of our customers and stakeholders are the offerings. Or it may be in the form of raised switching most satisfied? costs, due to lower cost structures generated through specialization or service sourcing. It may be a particular Which customers, channels or purchase occasions are attribute not readily found elsewhere, such as product the most profitable? knowledge, regulatory compliance, provisioning speeds, Again, the form of value can be monetary, social or other. technical capabilities or global support structures. Which of our activities in our value chain or value Which of our services or service varieties are the most network are the most different and effective? profitable? The answers to these questions will likely reveal patterns The form of value may be monetary, as in higher profits or that lend insight to future strategic decisions. These lower expenses, or social, as in saving lives or collecting decisions, and related objectives, form the basis of a taxes. For non-profit organizations, are there services that strategic assessment. allow the organization to perform its mission better? Service Providers can be present in more than one market Substitute ‘profit’ with ‘benefits realized’. space. As part of strategic planning, Service Providers should analyse their presence across various market spaces. Strategic reviews include the analysis of strengths, weaknesses, opportunities and threats in each market space. Service Providers also analyse their business Table 4.1 Factors in strategic assessment Factor Description Strengths and weaknesses The attributes of the organization. For example, resources and capabilities, service quality, operating leverage, experience, skills, cost structures, customer service, global reach, product knowledge, customer relationships and so on. Distinctive competencies As discussed throughout the chapter, ‘What makes the service provider special to its business or customers?’ Business strategy The perspective, position, plans and patterns received from a business strategy. For example, a Type I and II may be directed, as part of a new business model, to expose services to external partners or over the internet. This is also where the discussion on customer outcomes begins and is carried forward into objectives setting. Critical success factors How will the Service Provider know when it is successful? When must those factors be achieved? Threats and opportunities Includes competitive thinking. For example, ‘Is the service provider vulnerable to substitution?’ Or, ‘Is there a means to outperform competing alternatives?’
32. Service Strategy – governance and decision-making | 27potential based on un-served or underserved market A multi-disciplinary approach is required to answer suchspaces. This is an important aspect of leadership and questions. Technical knowledge of IT is necessary but notdirection provided by the senior management of Service sufficient. The guidance is pollinated with knowledge fromProviders. The long-term vitality of the Service Provider the disciplines such as operations management,rests on supporting customer needs as they change or marketing, finance, information systems, organizationalgrow as well exploiting new opportunities that emerge. development, systems dynamics and industrialThis analysis identifies opportunities with current and engineering. The result is a body of knowledge robustprospective customers. It also prioritizes investments in enough to be effective across a wide range of businessservice assets based on their potential to serve market environments. Some organizations are putting in place thespaces of interest. For example, if a Service Provider has foundational elements of service management. Others arestrong capabilities and resources in service recovery, it further up the adoption curve, ready to tackle challengesexplores all those market spaces where such assets can and opportunities with higher levels of complexity anddeliver value for customers. uncertainty.4.2 DEVELOPING STRATEGIC CAPABILITIES 4.3 SERVICE PROVIDER TYPES – MATCHINGTo operate and grow successfully in the long term, service NEED TO CAPABILITYproviders must have the ability to think and act in a The aim of service management is to make availablestrategic manner. The purpose of Service Strategy is to capabilities and resources useful to the customer in thehelp organizations develop such abilities. The achievement highly usable form of services at acceptable levels ofof strategic goals or objectives requires the use of strategic quality, cost and risks. Service Providers help relax theassets. The guidance shows how to transform service constraints on customers of ownership and control ofmanagement into a strategic asset. Readers benefit from specific resources. In addition to the value from utilizingseeing the relationships between various services, systems such resources now offered as services, customers areor processes they manage and the business models, freed to focus on what they consider to be their corestrategies or objectives they support. The guidance competence. The relationship between customers andanswers questions of the following kind: Service Providers varies by specialization in ownership and What services should we offer and to whom? control of resources and the coordination of dependencies between different pools of resources. How do we differentiate ourselves from competing alternatives? Service Strategy defines three broad types of Service How do we truly create value for our customers? Providers with whom a customer is likely to engage in How can we make a case for strategic investments? accessing services. How should we define service quality? Type I – Internal Service Provider How do we efficiently allocate resources across a Type I providers are typically business functions portfolio of services? embedded within the business units they serve. The How do we resolve conflicting demands for shared business units themselves may be part of a larger resources? enterprise or parent organization. Business functions such as finance, administration, logistics, human
33. 28 | Service Strategy – governance and decision-making resources and IT provide services required by various often require customers to have flexible and lean parts of the business. They are funded by overheads structures. In such cases it is better to buy services and are required to operate strictly within the rather than own and operate the assets necessary to mandates of the business. Type I providers have the execute certain business functions and processes. For benefit of tight coupling with their owner-customers, such customers, Type III is the best choice for a given avoiding certain costs and risks associated with set of services. conducting business with external parties. Today, it is common to see all three types combining Type II – Shared Service Provider capabilities to manage services for a customer. The power of Business functions such as finance, IT, human resources this approach lies in selecting the right blend and balance. and logistics are not always at the core of an The Service Strategy publication provides detailed organization’s competitive advantage. Hence, they guidance on provider types and how to decide on the need not be maintained at the corporate level where right blend. they demand the attention of the chief executive’s team. Instead, the services of such shared functions are consolidated into an autonomous special unit called a 4.4 SERVICES AS ASSETS – VALUE shared services unit (SSU). This model allows a more CREATION devolved governing structure under which an SSU can A good business model describes the means of fulfilling an focus on serving business units as direct customers. organization’s objectives. However, without a strategy that SSUs can create, grow and sustain an internal market in some way makes a Service Provider uniquely valuable to for their services and model themselves along the lines the customer, there is little to prevent alternatives from of service providers in the open market. Like corporate displacing the organization, degrading its mission or business functions, they can leverage opportunities entering its market space. A service strategy therefore across the enterprise and spread their costs and risks defines a unique approach for delivering better value. The across a wider base. need for having a service strategy is not limited to Service Type III – External Service Provider Providers who are commercial enterprises. Internal Service Type III providers can offer competitive prices and drive Providers need just as much to have a clear perspective, down unit costs by consolidating demand. Certain positioning and plans to ensure they remain relevant to the business strategies are not adequately served by business strategies of their enterprises. internal Service Providers such as Type I and Type II. Service assets have two main characteristics: Customers may pursue sourcing strategies requiring services from external providers. The motivation may Utility is perceived by the customer from the be access to knowledge, experience, scale, scope, attributes of the service that have a positive effect on capabilities and resources that are either beyond the the performance of tasks associated with desired reach of the organization or outside the scope of a business outcomes. This is fit for purpose. carefully considered investment portfolio. Business Warranty is derived from the positive effect being strategies often require reductions in the asset base, available when needed, in sufficient capacity or fixed costs, operational risks or the redeployment of magnitude, and dependably in terms of continuity and financial assets. Competitive business environments security. This is fit for use.
34. Service Strategy – governance and decision-making | 29Utility is what the customer gets, and warranty is how it is responds by delivering the performance expected of adelivered. strategic asset. The performance is rewarded with contract renewals, new services and customers, which togetherResources and capabilities are types of assets that, when represent a larger value of business. To handle this increasecombined in various ways, produce service utility and in value, service management must invest further in assetswarranty. Organizations use them to create value in the such as process, knowledge, people, applications andform of goods and services. Resources are direct inputs for infrastructure. Successful learning and growth enablesproduction. Management, organization, people and commitments of higher service levels as serviceknowledge are used to transform resources. Capabilities management gets conditioned to handle bigger challenges.represent an organization’s ability to coordinate, controland deploy resources to produce value. They are typicallyexperience-driven, knowledge-intensive, information-based 4.5 DEFINING THE MARKET SPACEand firmly embedded within an organization’s people, A market space is defined by a set of business outcomes,systems, processes and technologies. which can be facilitated by a service. The opportunity toCustomers perceive benefits in a continued relationship, facilitate those outcomes defines a market space. Theand entrust the provider with the business of increasing following are examples of business outcomes that can bevalue and also adding new customers and market spaces the bases of one or more market spaces:to the realm of possibilities. This justifies further Sales teams are productive with sales managementinvestments in service management in terms of system on wireless computerscapabilities and resources, which have a tendency to E-commerce website is linked to the warehousereinforce each other. management systemCustomers may initially trust the provider with low-value Key business applications are monitored and securecontracts or non-critical services. Service managementFigure 4.1 Service Provider capabilities and resources Capabilities Resources A1 Management Financial capital A9 A2 Organization Infrastructure A8 A3 Processes Applications A7 A4 Knowledge Information A6 People A5 People
35. 30 | Service Strategy – governance and decision-making Loan officers have faster access to information required services create value for customers. Services are often on loan applicants defined in terms of resources made available for use by Online bill payment service offers more options for customers. Service definitions lack clarity in the context in shoppers to pay which such resources are useful, and the business Business continuity is assured. outcomes that justify their cost from a customer’s perspective. This problem leads to poor designs, Each of the conditions is related to one or more categories ineffective operation and lacklustre performance in service of customer assets, such as people, infrastructure, contracts. Service improvements are difficult when it is not information, accounts receivables and purchase orders, clear where improvements are truly required. Customers and can then be linked to the services that make them can understand and appreciate improvements only within possible. the context of their own business assets, performances Customers will prefer the one that means lower costs and and outcomes. It is therefore important the Service risks. Service Providers create these conditions through Providers identify their market spaces by ensuring they the services they deliver and thereby provide support for define service by business outcomes such as those customers to achieve specific business outcomes. described above and in Figure 4.2. A market space therefore represents a set of opportunities for Service Providers to deliver value to a customer’s 4.6 SERVICE PORTFOLIOS business through one or more services. This approach has The Service Portfolio (Figure 4.3) represents the definite value for Service Providers in building strong commitments and investments made by a Service Provider relationships with customers. Often it is not clear how across all customers and market spaces. It represents Figure 4.2 Actionable components of service definitions in terms of utility Lines of Service Utility Part A Utility Part B Mobile workspace field staff securely access enterprise being constrained by services location or time applications Credit reporting provide value to loans officers determine credit- slowing down the services the customer without loan process when rating of applicants Business disruption or loss business processes from failures or continuity services continue to operate disastrous events (Catalogue) (Outcomes supported) (Constraints removed)
36. Service Strategy – governance and decision-making | 31present contractual commitments, new service governance aspect of Service Portfolio Management (SPM).development, and ongoing service improvement Entry, progress and exit are approved only with approvedprogrammes initiated by Continual Service Improvement. funding and a financial plan for recovering costs orThe portfolio also includes third-party services, which are showing profit as necessary. The Portfolio should have thean integral part of service offerings to customers. Some right mix of services in development for the market spacesthird-party services are visible to the customers while and the Service Catalogue (Figure 4.4) to secure theothers are not. financial viability of the Service Provider. The Service Catalogue is the only part of the Portfolio that recoversThe Service Portfolio represents all the resources presently costs or earns profits.engaged or being released in various phases of the ServiceLifecycle. Each phase requires resources for completion ofprojects, initiatives and contracts. This is a very importantFigure 4.3 Service Portfolio Service Improvement Plan Customer Market 3 Space 1 Linked by services Customer Service Market 2 Portfolio Space 2 Market potential for services Customer Market 1 Space 3 Third-party Services
37. 32 | Service Strategy – governance and decision-making Figure 4.4 Elements of a Service Portfolio and Service Catalogue Service Portfolio Service Catalogue(s) Description Services Value proposition Supported products Business cases Policies Priorities Ordering and request procedures Risks Support terms and Offerings and packages conditions Cost and pricing Entry points and escalations Pricing and chargeback If we think of SPM as a dynamic and ongoing process set, it should include the following work methods: Define: inventory services, ensure business cases and validate portfolio data Analyse: minimize portfolio value, align and prioritize and balance supply and demand Approve: finalize proposed portfolio, authorize services and resources Charter: communicate decisions, allocate resources and charter services.
38. Service Strategy – governance and decision-making | 33Figure 4.5 Service Portfolio management 4.6.2 Service Catalogue The Service Catalogue is the subset of the Service Portfolio Service visible to customers. It consists of services presently active Strategy in the Service Operation phase and those approved to be readily offered to current or prospective customers. Items can enter the Service Catalogue only after due diligence has been performed on related costs and risks. Resources • Inventories Define • Business Case are engaged to fully support active services. The Service Catalogue is useful in developing suitable solutions for customers from one or more services. Items in the Service Catalogue can be configured and suitably • Value Proposition Analyse priced to fulfil a particular need. The Service Catalogue is • Prioritization an important tool for Service Strategy because it is the virtual projection of the Service Provider’s actual and present capabilities. Many customers are only interested in • Service Portfolio what the provider can commit now, rather than in future. Approve • Authorization 4.7 SERVICE OUTSOURCING – PRACTICAL DECISION-MAKING • Communication Charter • Resource allocation A service strategy should enhance an organization’s special strengths and core competencies. Each component should reinforce the other. Change any one and you have a different model. As organizations seek to improve their performance, they should consider which competencies4.6.1 Service Pipeline are essential and know when to extend their capabilitiesThe Service Pipeline consists of services under by partnering in areas both inside and outside theirdevelopment for a given market space or customer. enterprise.These services are to be phased into operation by ServiceTransition after completion of design, development and Outsourcing is the moving of a value-creating activity thattesting. The Pipeline represents the Service Provider’s was performed inside the organization to outside thegrowth and strategic outlook for the future. The general organization where it is performed by another company.health of the provider is reflected in the Pipeline. It also What prompts an organization to outsource an activity isreflects the extent to which new service concepts and the same logic that determines whether an organizationideas for improvement are being fed by Service Strategy, makes or buys inputs. Namely, does the extra valueService Design and Continual Service Improvement. Good generated from performing an activity inside thefinancial management is necessary to ensure adequate organization outweigh the costs of managing it? Thisfunding for the Pipeline. decision can change over time.
39. 34 | Service Strategy – governance and decision-making Table 4.2 Types of sourcing structures Sourcing structure Description Internal (Type I) The provision and delivery of services by internal staff. Does not typically include standardization of service delivery across business units. Provides the most control but also the most limited in terms of scale. Shared services (Type II) An internal business unit. Typically operates its profit and loss, and a chargeback mechanism. If cost recovery is not used, then it is internal not shared services. Lower costs than Internal with a similar degree of control. Improved standardization but limited in terms of scale. Full service outsourcing A single contract with a single Service Provider. Typically involves significant asset transfer. Provides improved scale but limited in terms of best-in-class capabilities. Delivery risks are higher than prime, consortium or selective outsourcing as switching to an alternative is difficult. Prime A single contract with a single Service Provider who manages service delivery but engages multiple providers to do so. The contract stipulates that the prime vendor will leverage the capabilities of other best-in-class Service Providers. Capabilities and risk are improved from single-vendor outsourcing but complexity is increased. Consortium A collection of Service Providers explicitly selected by the service recipient. All providers are required to come together and present a unified management interface. Fulfils a need that cannot be satisfied by any single-vendor outsourcer. Provides best- in-class capabilities with greater control than prime. Risk is introduced in the form of providers forced to collaborate with competitors. Selective outsourcing A collection of Service Providers explicitly selected and managed by the service recipient. This is the most difficult structure to manage. The service recipient is the service integrator, responsible for gaps or cross-provider disputes. The term ‘co-sourcing’ refers to a special case of selective outsourcing. In this variant, the service recipient maintains an internal or shared services structure and combines it with external providers. The service recipient is the service integrator.
40. Service Strategy – governance and decision-making | 35Sourcing requires businesses to formally consider a management and governance, they inevitably focus onsourcing strategy, the structure and role of the retained execution at the expense of strategic decision-making.organization, and how decisions are made. When sourcing Both are vitally important. Further complicating matters isservices, the enterprise retains the responsibility for the the requirement of sharing decision rights with the Serviceadequacy of services delivered. Therefore, the enterprise Providers. When a company places itself in a position toretains key overall responsibility for governance. The make operational decisions on behalf of an outsourcer,enterprise should adopt a formal governance approach in the outcomes are inevitably poor service levels andorder to create a working model for managing its contentious relationship management.outsourced services as well as the assurance of value Governance is invariably the weakest link in a servicedelivery. This includes planning for the organizational sourcing strategy. A few simple constructs have beenchange precipitated by the sourcing strategy and a formal shown to be effective at improving that weakness:and verifiable description as to how decisions on servicesare made. Table 4.2 describes the generic forms of service A governance body – By forming a manageably sizedsourcing structures. governance body with a clear understanding of the service sourcing strategy, decisions can be madePartnering with providers who are ISO/IEC 20000 without escalating to the highest levels of seniorcompliant can be an important element in reducing the management. By including representation from eachrisk of service sourcing. Organizations who have achieved Service Provider, stronger decisions can be made.this certification are more likely to meet service levels on a Governance domains – Domains can cover decision-sustained basis. This credential is particularly important in making for a specific area of the service sourcingmulti-sourced environments where a common framework strategy. Domains can cover, for example, servicepromotes better integration. Multi-sourced environments delivery, communication, sourcing strategy or contractrequire common language, integrated processes and a management. Remember, a governance domain doesmanagement structure between internal and external not include the responsibility for its execution, only itsproviders. ISO/IEC 20000 does not provide all of this but it strategic decision-making.provides a foundation on which it can be built. Creation of a decision-rights matrix – This ties all4.7.1 Sourcing governance three recommendations together. RACI or RASIC charts are common forms of a decision-rights matrix.There is a frequent misunderstanding of the definition of‘governance’, particularly in a sourcing context. Companieshave used the word interchangeably with ‘vendor 4.8 RETURN ON INVESTMENT (ROI)management’, ‘retained staff’ and ‘sourcing management Return on investment (ROI) is a concept for quantifyingorganization’. Governance is none of these. the value of an investment. Its use and meaning are notManagement and governance are different disciplines. always precise. When dealing with financial officers, ROIManagement deals with making decisions and executing most likely means ROIC (return on invested capital), aprocesses. Governance only deals with making sound measure of business performance. In service management,decisions. It is the framework of decision rights that ROI is used as a measure of the ability to use assets toencourages desired behaviours in the sourcing and the generate additional value. In the simplest sense, it is thesourced organization. When companies confuse net profit of an investment divided by the net worth of
41. 36 | Service Strategy – governance and decision-making the assets invested. The resulting percentage is applied to While a service can be directly linked and justified through either additional top-line revenue or the elimination of specific business imperatives, few companies can readily bottom-line cost. identify the financial return for the specific aspects of service management. It is often an investment that It is not unexpected that companies seek to apply ROI in companies must make in advance of any return. deciding to adopt service management. ROI is appealing because it is self-evident. The measure either meets or does not meet a numerical criterion. The challenge is 4.9 FINANCIAL MANAGEMENT when ROI calculations focus on the short term. The Operational visibility, insight and superior decision-making application of service management has different degrees are the core capabilities brought to the enterprise through of ROI, depending on business impact (see Figure 4.6). the rigorous application of Financial Management. Just as Moreover, there are often difficulties in quantifying the business units accrue benefits through the analysis of complexities involved in implementations. Figure 4.6 Business impact and ROI outcome Business Impact Business Objectives Improved Reliability Tangible Measure: MTBF (Mean Time Between Failure) Impact: MTBF to 200 hours from 600 hours Improved Maintainability Customer Satisfaction Tangible Measure: Tangible Measure: MTRS (Mean Time to Restore) Repeat Rate of Business Impact: Target: MTRS to 2 hours from 6 hours Improve rate to 60% from 25% Improved Services Tangible Measure: Product orders can now be placed on-line Impact: Product orders can be placed 24 x7
42. Service Strategy – governance and decision-making | 37product mix and margin data, or customer profiles and by focusing on demand and supply variances resultingproduct behaviour, a similar utility of financial data from business strategy, capacity inputs and forecasting,continues to increase the importance of Financial rather than traditional individual line item expenditures orManagement for IT and the business as well. business cost accounts. As with planning for any other business organization, input should be collected from allFinancial Management as a strategic tool is equally areas of the IT organization and the business.applicable to all three Service Provider types. Internalservice providers are increasingly asked to operate with Planning can be categorized into three main areas, eachthe same levels of financial visibility and accountability as representing financial results that are required fortheir business unit and external counterparts. Moreover, continued visibility and service valuation:technology and innovation have become the core Operating and capital planning processes are commonrevenue-generating capabilities of many companies. and fairly standardized, and involve the translation ofFinancial Management provides the business and IT with IT expenditures into corporate financial systems as partthe quantification, in financial terms, of the value of IT of the corporate planning cycle. Beyond this, theservices, the value of the assets underlying the importance of this process is in communicatingprovisioning of those services, and the qualification of expected changes in the funding of IT services foroperational forecasting. Talking about IT in terms of consideration by other business domains. The impactservices is the crux of changing the perception of IT and of IT services on capital planning is largelyits value to the business. Therefore, a significant portion of underestimated, but is of interest to tax and fixed-assetFinancial Management is working in tandem with IT and departments if the status of an IT asset changes.the business to help identify, document and agree on the Demand representing the need and use of IT services.value of the services being received, and the enablement Regulatory and environmental-related planning shouldof service demand modelling and management. get its triggers from within the business. However,Much like their business counterparts, IT organizations are Financial Management should apply the properincreasingly incorporating Financial Management in the financial inputs to the related services value, whetherpursuit of: cost-based or value-based. Enhanced decision-making 4.9.1 Service valuation Speed of change Service valuation quantifies, in financial terms, the funding Service Portfolio Management sought by the business and IT for services delivered, based Financial compliance and control on the agreed value of those services. Financial Operational control Management calculates and assigns a monetary value to a Value capture and creation. service or service component so that they may be disseminated across the enterprise once the businessOne goal of Financial Management is to ensure proper customer and IT identify what services are actually desired.funding for the delivery and consumption of services.Planning provides financial translation and qualification of Hardware and software licence costsexpected future demand for IT services. Financial Annual maintenance fees for hardware and softwareManagement planning departs from historical IT planning
43. 38 | Service Strategy – governance and decision-making Personnel resources used in the support or Fixed/variable – this segregation of costs is based maintenance of a service on contractual commitments of time or price. The Utilities, data centre or other facilities charges strategic issue around this classification is that the Taxes, capital or interest charges business should seek to optimize fixed service costs Compliance costs. and minimize the variable in order to minimize predictability and stability Financial Management plays a translational role between Cost units – a cost unit is the identified unit of corporate financial systems and service management. The consumption that is accounted for a particular result of a service-oriented accounting function is that far service or service asset. greater detail and understanding is achieved regarding service provisioning and consumption, and the generation 4.9.2 Variable cost dynamics of data that feeds directly into the planning process. The Variable cost dynamics (VCD) focuses on analysing and functions and accounting characteristics that come into understanding the multitude of variables that impact play are discussed below: service cost, how sensitive those elements are to variation, Service recording – The assignment of a cost entry to and the related incremental value changes that result. the appropriate service. Depending on how services Below is a very brief list of possible variable service cost are defined, and the granularity of the definitions, components that could be included in such an analysis: there may be additional sub-service components Cost types – These are higher-level expenses Number and type of users categories such as hardware, software, labour, Number of software licences administration etc. These attributes assist with Cost/operating foot of data centre reporting and analysing demand and usage of services Delivery mechanisms and their components in commonly used financial Number and type of resources terms Cost of adding one more storage device Cost classifications – There are also classifications Cost of adding one more end-user license. within services that designate the end purpose of the cost. These include classifications such as: Capital/operational – this classification addresses 4.10 INCREASING SERVICE POTENTIAL different accounting methodologies that are The capabilities and resources (service assets) of a Service required by the business and regulatory agencies Provider represent the service potential or the productive Direct/indirect – this designation determines capacity available to customers through a set of services. whether a cost will be assigned directly or indirectly Projects that develop or improve capabilities and resources to a consumer or service: increase the service potential. For example, – Direct costs are charged directly to a service implementation of a Configuration Management System since it is the only consumer of the expense leads to improved visibility and control over the – Indirect or shared costs are allocated across productive capacity of service assets such as networks, multiple services since each service may storage and servers. It also helps quickly to restore such consume a portion of the expense capacity in the event of failures or outages. There is
44. Service Strategy – governance and decision-making | 39Table 4.3 Example of increased Service PotentialService management Increasing service potential Increasing service potentialinitiative from capabilities from resourcesData centre rationalization Better control over service operations Increases the capacity of assets Lower complexity in infrastructure Increases economies of scale and scope Development of infrastructure and Capacity building in service assets technology assetsTraining and certification Knowledgeable staff in control of Service Staffing of key competencies Lifecycle Extension of Service Desk hours Improved analysis and decisionsImplement Incident Management Better response to Service Incidents Reducing losses in resource utilizationprocess Prioritization of recovery activitiesDevelop service design process Systematic design of services Re-use of service components Enrichment of design portfolio Fewer service failures through designThin-client computing Increased flexibility in work locations Standardization and control of configurations Enhanced service continuity capabilities Centralization of administration functionsgreater efficiency in the utilization of those assets and There is no one best way to organize. Elements of antherefore service potential because of capability organizational design, such as scale, scope and structure,improvements in Configuration Management. Similar are highly dependent on strategic objectives. Over time,examples are given in Table 4.3. One of the key objectives an organization will likely outgrow its design. Certainof service management is to improve the service potential organizational designs fit while others do not. The designof its capabilities and resources. challenge is to identify and select among often distinct choices. Thus the problem becomes much more solvable when there is an understanding of the factors that4.11 ORGANIZATIONAL DEVELOPMENT generate fit and the trade-offs involved, such as controlWhen senior managers adopt a service management and coordination.orientation, they are adopting a vision for the It is common to think of organizational hierarchies inorganization. Such a vision provides a model toward terms of functions. As the functional groups becomewhich staff can work. Organizational change, however, is larger, think of them in terms of departmentalization.not instantaneous. Senior managers often make the A department can loosely be defined as an organizationalmistake of thinking that announcing the organizational activity involving over 20 people. When a functional groupchange is the same as making it happen. grows to departmental size, the organization can reorient
45. 40 | Service Strategy – governance and decision-making the group to one of the following areas or a hybrid Certain basic structures are preferred for certain service thereof: strategies, as shown in Table 4.4. Function – preferred for specialization, the pooling of Service strategies are executed by delivering and resources and reducing duplication supporting the contract portfolio in a given market space. Product – preferred for servicing businesses with Contracts specify the terms and conditions under which strategies of diverse and new products, usually value is delivered to customer through services. From an manufacturing businesses operational point of view this translates into specific levels Market space or customer – preferred for organizing of utility and warranty for every service. Since every service around market structures. Provides differentiation in is mapped to one or more market spaces, it follows that the form of increased knowledge of and response to the design of a service is related to categories of customer customer preferences assets and the service models. These are the basic inputs Geography – the use of geography depends on the for service design. industry. By providing services in close geographical There is much more depth in Service Strategy than proximity, travel and distribution costs are minimized depicted in the preceding pages. As the core of the ITIL while local knowledge is leveraged Service Lifecycle, Service Strategy is a prime component in Process – preferred for an end-to-end coverage of a a good service management practice. The key concepts process. have been outlined in this book to provide a basic understanding and illustrate the enormous benefits a Table 4.4 Basic organizational structures for types of service strategies Basic structure Strategic considerations Functional Specialization Common standards Small size Product Product focus Strong product knowledge Market space or customer Service unique to segment Customer service Buyer strength Rapid customer service Geography Onsite services Proximity to customer for delivery and support Organization perceived as local Process Need to minimize process cycle times Process excellence
46. Service Strategy – governance and decision-making | 41sound service strategy offers to every IT organization andtheir customers. You are encouraged to read the ServiceStrategy core guidance in its entirety as the best place tostart in expanding your knowledge of service managementpractices.
47. Service Design – buildingstructural service integrity 5
48. | 455 Service Design – building structural service integrity Requirements The business/customers Service Objectives from Strategy Resource and Requirements Constraints Policies Strategies Service SDPs Design Standards Architectures Solution DesignsFollowing on from Service Strategy, Service Design is the The Service Design publication provides a greater level ofnext stage in the ITIL Service Lifecycle. While the lifecycle detail on these and also on application and infrastructureis not entirely linear, we will portray each stage from a design principles.logical progression. The key concepts of Service Design The main purpose of the Service Design stage of therevolve around the five design aspects and the design of lifecycle is the design of new or changed service forservices, service processes and service capabilities to meet introduction into the live environment. It is important thatbusiness demand. The primary topics that will be a holistic approach to all aspects of design is adopted anddiscussed here are not the entire spectrum of Service that when changing or amending any of the individualDesign, but the main elements that illustrate the elements of design all other aspects are considered. Thusobjectives of this stage in the Service Lifecycle: when designing and developing a new application, this Aspects of Service Design shouldn’t be done in isolation, but should also consider Service Catalogue Management the impact on the overall service, the management Service Requirements systems and tools (e.g. the Service Portfolio and Service Design Models Catalogue), the architectures, the technology, the Service Management processes and the necessary measurements Capacity Management and metrics. This will ensure that not only the functional Availability Management elements are addressed by the design, but also that all of Service Level Management.
49. 46 | Service Design – building structural service integrity the management and operational requirements are Improved IT governance: assists with the addressed as a fundamental part of the design and are not implementation and communication of a set of added as an afterthought. controls for effective governance of IT The main aim of Service Design is the design of new or More effective service management and IT changed services. The requirements for these new services processes: processes will be designed with optimal are extracted from the Service Portfolio and each quality and cost-effectiveness requirement is analysed, documented and agreed and a Improved information and decision-making: more solution design is produced that is then compared with comprehensive and effective measurements and the strategies and constraints from Service Strategy to metrics will enable better decision-making and ensure that it conforms to corporate and IT policies. continual improvement of service management practices in the design stage of the Service Lifecycle. 5.1 BUSINESS VALUE 5.2 FIVE ASPECTS OF SERVICE DESIGN With good Service Design it will be possible to deliver quality, cost-effective services and to ensure that the There are five aspects of design that need to be business requirements are being met. considered: The following benefits are as a result of good Service 1 The design of the services, including all of the Design practice: functional requirements, resources and capabilities needed and agreed Reduced total cost of ownership (TCO): cost of ownership can only be minimized if all aspects of 2 The design of service management systems and tools, services, processes and technology are designed especially the Service Portfolio, for the management properly and implemented against the design and control of services through their lifecycle Improved quality of service: both service and 3 The design of the technology architectures and operational quality will be enhanced management systems required to provide the services Improved consistency of service: as services are 4 The design of the processes needed to design, designed within the corporate strategy, architectures transition, operate and improve the services, the and constraints architectures and the processes themselves Easier implementation of new or changed services: as there is integrated and full Service Design, and the 5 The design of the measurement methods and metrics production of comprehensives Service Design Packages of the services, the architectures and their constituent Improved service alignment: involvement from the components and the processes. conception of the service ensuring that new or A results-driven approach should be adopted for each of changed services match business needs, with services the above five aspects. In each, the desired business designed to meet Service Level Requirements outcomes and planned results should be defined so that More effective service performance: with what is delivered meets the expectation of the customers incorporation and recognition of Capacity, Financial, and users. Thus this structured approach should be Availability and IT Service Continuity plans adopted within each of the five aspects to deliver quality,
50. Service Design – building structural service integrity | 47repeatable consistency and continual improvement The externally supported services and components andthroughout the organization. There are no situations their associated Underpinning Contracts (UCs), whichwithin IT service provision with either internal or external will often have their own related agreements and/orservice providers where there are no processes in the schedulesService Design area. All IT Service Provider organizations The performance measurements and metrics requiredalready have some elements of their approach to these The legislated or required security levels.five aspects in place, no matter how basic. Before startingon the implementation of the improvement of activities The relationships and dependencies between theseand processes a review should be conducted of what elements are illustrated in Figure 5.1.elements are in place and working successfully. Many The design needs to be holistic, and the main problemService Provider organizations already have mature today is that organizations often only focus on theprocesses in place for designing IT services and solutions. functional requirements. A design or architecture by very definition needs to consider all aspects. It is not a smaller5.3 IDENTIFYING SERVICE REQUIREMENTS organization that combines these aspects, it is a sensible one.Service Design must consider all elements of the service bytaking a holistic approach to the design of a new service. The design process activities are:This approach should consider the service and its Requirements collection, analysis and engineering toconstituent components and their inter-relationships, ensure that business requirements are clearlyensuring that the services delivered meet the functionality documented and agreedand quality of service expected by the business in all areas: Design of appropriate services, technology, processes, The scalability of the service to meet future information and process measurements to meet requirements, in support of the long-term business business requirements objectives Review and revision of all processes and documents The business processes and business units supported involved in Service Design, including designs, plans, by the service architectures and policies The IT service and the agreed business functionality Liaison with all other design and planning activities and requirements and roles, e.g. solution design The service itself and its Service Level Requirement Production and maintenance of IT policies and design (SLR) or Service Level Agreement (SLA) documents, including designs, plans, architectures and The technology components used to deploy and policies deliver the service, including the infrastructure, the Revision of all design documents and planning for the environment, the data and the applications deployment and implementation of IT strategies using The internally supported services and components and roadmaps, programmes and project plans their associated Operational Level Agreements (OLAs) Risk assessment and management of all design processes and deliverables Ensuring alignment with all corporate and IT strategies and policies.
51. 48 | Service Design – building structural service integrity Figure 5.1 Design dependencies Business service a Business service b Business service c The business 3 6 9 2 5 8 Business Business Business process 1 process 4 process 7 E F G IT Services B C D SLAs Service A IT Service Service Service Strategy Transition Operation Service Knowledge Management System Service Portfolio Service Design Services Processes Service Catalogue Service SLM SCM Improvement Supplier Architectures Security Availability IT Service Continuity Measurement Capacity methods Support teams Suppliers 5.4 SERVICE DESIGN MODELS Scope and capability of external suppliers Maturity of the organizations currently involved and Before adopting a design model for a major new service, a their processes review of the current capability and provisions with respect to all aspects regarding the delivery of IT services Culture of the organizations involved should be conducted. This review should consider all IT infrastructure, applications, data, services and other aspects of the new service including: components involved Degree of corporate and IT governance and the level Business drivers and requirements of ownership and control required Scope and capability of the existing service provider Budgets and resources available unit Staff levels and skills. Demands, targets and requirements of the new service
52. Service Design – building structural service integrity | 495.5 DELIVERY MODEL OPTIONS disadvantages, but all require some level of adaptation and customization for the situation at hand. Table 5.1 listsAlthough the readiness assessment determines the gap the main categories of sourcing strategies with a shortbetween the current and desired capabilities, an IT abstract for each. Delivery practices tend to fall into one oforganization should not necessarily try to bridge that gap these categories or some variant of them.by itself. There are many different delivery strategies thatcan be used. Each one has its own set of advantages andTable 5.1 Delivery model optionsDelivery strategy DescriptionInsourcing This approach relies on utilizing internal organizational resources in the design, development, transition, maintenance, operation and/or support of a new, changed or revised services or data centre operationsOutsourcing This approach utilizes the resources of an external organization or organizations in a formal arrangement to provide a well-defined portion of a service’s design, development, maintenance, operations and/or support. This includes the consumption of services from Application Service Providers (ASPs) described belowCo-sourcing Often a combination of insourcing and outsourcing, using a number of outsourcing organizations working together to co-source key elements within the lifecycle. This generally will involve using a number of external organizations working together to design, develop, transition, maintain, operate and/or support a portion of a servicePartnership or multi-sourcing Formal arrangements between two or more organizations to work together to design, develop, transition, maintain, operate and/or support IT service(s). The focus here tends to be on strategic partnerships that leverage critical expertise or market opportunitiesBusiness process outsourcing (BPO) The increasing trend of relocating entire business functions using formal arrangements between organizations where one organization provides and manages the other organization’s entire business process(es) or function(s) in a low-cost location. Common examples are accounting, payroll and call-centre operationsApplication service provision (ASP) Involves formal arrangements with an ASP organization that will provide shared computer-based services to customer organizations over a network. Applications offered in this way are also sometimes referred to as ‘on-demand software/applications’. Through ASPs the complexities and costs of such shared software can be reduced and provided to organizations that could otherwise not justify the investmentKnowledge process outsourcing (KPO) The newest form of outsourcing, KPO is a step ahead of BPO in one respect. KPO organizations provide domain-based processes and business expertise rather than just process expertise and require advanced analytical and specialized skills from the outsourcing organization
53. 50 | Service Design – building structural service integrity 5.6 SERVICE CATALOGUE MANAGEMENT Interfaces and dependencies between all services and supporting services within the Service Catalogue and Over the years, organizations’ IT infrastructures have the CMS grown and developed, and there may not always be a Interfaces and dependencies between all services, and clear picture of all the services currently being provided or supporting components and Configuration Items (CIs) the customers of each service. In order to establish an within the Service Catalogue and the CMS. accurate picture, it is recommended that an IT Service Portfolio containing a Service Catalogue is produced and When initially completed, the Service Catalogue may maintained to provide a central accurate set of consist of a matrix, table or spreadsheet. Many information on all services and to develop a service- organizations integrate and maintain their Portfolio and focused culture. Catalogue as part of their CMS. By defining each service as a CI and, where appropriate, relating these to form a In the preceding chapter, we learned about the Service service hierarchy, the organization is able to relate events Portfolio and its constituent elements. Among them is the such as Incidents and RFCs to the services affected, thus Service Catalogue. providing the basis for service monitoring and reporting The objective of Service Catalogue Management is to using an integrated tool (e.g. ‘list or give the number of manage the information contained within the Service Incidents affecting this particular service’). It is therefore Catalogue and to ensure that it is accurate and reflects the essential that changes within the Service Portfolio and current details, status, interfaces and dependencies of all Service Catalogue are subject to the Change Management services that are being run or being prepared to run in the process. live environment. The Service Catalogue can also be used for other Service The Service Catalogue provides business value as a central Management purposes (e.g. for performing a Business source of information on the IT services delivered by the Impact Analysis (BIA) as part of IT Service Continuity service provider organization. This ensures that all areas of Planning, or as a starting place for redistributing the business can view an accurate, consistent picture of workloads, as part of Capacity Management). The cost and the IT services, their details and their status. It contains a effort of producing and maintaining the catalogue, with its customer-facing view of the IT services in use, how they relationships to the underpinning technology components, are intended to be used, the business processes they is therefore easily justifiable. If done in conjunction with enable, and the levels and quality of service the customer prioritization of the BIA, then it is possible to ensure that can expect of each service. the most important services are covered first. Service Catalogue Management activities should include: The Service Catalogue has two aspects: Definition of the service Business Service Catalogue: containing details of all Production and maintenance of an accurate Service of the IT services delivered to the customer, together Catalogue with relationships to the business units and the Interfaces, dependencies and consistency between the business processes that rely on the IT services. This is Service Catalogue and Service Portfolio the customer view of the Service Catalogue
54. Service Design – building structural service integrity | 51 Technical Service Catalogue: containing details of all Interfacing with the business and IT Service Continuity the IT services delivered to the customer, together with Management on the dependencies of business units relationships to the supporting services, shared and their business processes with the supporting IT services, components and CIs necessary to support the services, contained within the Business Service provision of the service to the business. This should Catalogue underpin the Business Service Catalogue and not form Interfacing with support teams, Suppliers and part of the customer view. Configuration Management on interfaces andThe key activities within the Service Catalogue dependencies between IT services and the supportingManagement process should include: services, components and CIs contained within the Technical Service Catalogue Agreeing and documenting a service definition with all Interfacing with Business Relationship Management relevant parties and Service Level Management to ensure that the Interfacing with Service Portfolio Management to agree information is aligned to the business and business the contents of the Service Portfolio and Service process. Catalogue The Service Catalogue forms an integral part of the overall Producing and maintaining a Service Catalogue and its Service Portfolio and is a key, customer-facing view of the contents, in conjunction with the Service Portfolio services on offer. It establishes the expectations of value and potential that customers can expect from their ITFigure 5.2 Service Catalogue elements The Service Catalogue Business Business Business Process 1 Process 2 Process 3 Business Service Catalogue Service A Service B Service C Service D Service E Technical Service Catalogue Support Hardware Software Applications Data Services
55. 52 | Service Design – building structural service integrity service provider(s). The Service Design core publication Monitor and improve customer satisfaction with the contains detailed guidance on the construction and quality of service delivered management of a Service Catalogue. Ensure that IT and the customers have a clear and unambiguous expectation of the level of service to be 5.7 SERVICE LEVEL MANAGEMENT delivered Ensure that proactive measures to improve the levels Service Level Management (SLM) negotiates, agrees and of service delivered are implemented wherever it is documents appropriate IT service targets with cost-justifiable to do so. representatives of the business, and then monitors and produces reports on the Service Provider’s ability to deliver The key activities within the SLM process should include: the agreed level of service. SLM is a vital process for every Determine, negotiate, document and agree IT Service Provider organization in that it is responsible for requirements for new or changed services in SLRs, and agreeing and documenting service level targets and manage and review them through the Service Lifecycle responsibilities within Service Level Agreements (SLAs) and into SLAs for operational services Service Level Requirements (SLRs), for every activity within Monitor and measure service performance IT. If these targets are appropriate and accurately reflect achievements of all operational services against targets the requirements of the business, then the service within SLAs delivered by the Service Providers will align with business Collate, measure and improve customer satisfaction requirements and meet the expectations of the customers Produce service reports and users in terms of service quality. If the targets are not aligned with business needs, then Service Provider Conduct service review and instigate improvements activities and service levels will not be aligned with within an overall Service Improvement business expectations and problems will develop. Programme/Plan (SIP) Review and revise SLAs, service scope OLAs, contracts The SLA is effectively a level of assurance or warranty with and any other underpinning agreements regard to the level of service quality delivered by the Develop and document contacts and relationships with Service Provider for each of the services delivered to the the business, customers and stakeholders business. The success of SLM is very dependent on the Develop, maintain and operate procedures for logging, quality of the Service Portfolio and the Service Catalogue actioning and resolving all complaints, and for logging and their contents, because they provide the necessary and distributing compliments information on the services to be managed within the SLM process. Log and manage all complaints and compliments Provide the appropriate management information to The objectives of SLM are to: aid performance management and demonstrate service Define, document, agree, monitor, measure, report and achievement review the level of IT services provided Make available and maintain up-to-date SLM Provide and improve the relationship and document templates and standards. communication with the business and customers Ensure that specific and measurable targets are developed for all IT services
56. Service Design – building structural service integrity | 53Figure 5.3 The Service Level Management process Business Unit A Business Unit B The business 3 6 2 5 Business Business Process 1 Process 4 SLM G D F Service A B C Document SLR(s) SLA(s) SLA(s) standards & templates Determine, Monitor service Conduct service document & agree performance against review & instigate requirements for new SLA & produce service improvements within Assist with the services SLRs & make reports an overall SIP Service Catalogue SLAs & maintain document templates Develop contacts Collate, measure & relationships, & improve record & manage Service customer complaints & Catalogue satisfaction compliments Service Reports Review & revise SLAs, service scope & underpinning Contracts agreements OLAs Support teams Supplier Management Suppliers
57. 54 | Service Design – building structural service integrity There are a number of potential options, including the Service level: covering all SLM issues relevant to the following. specific service, in relation to a specific customer group (one for each service covered by the SLA). Service-based SLA This is where an SLA covers one service for all the The wording of SLAs should be clear and concise and customers of that service – for example, an SLA may leave no room for ambiguity. There is normally no need be established for an organization’s e-mail service, for agreements to be couched in legal terminology, and covering all of the customers of that service. Where plain language aids a common understanding. It is often common levels of service are provided across all areas helpful to have an independent person, who has not been of the business, e.g. e-mail or telephony, the service- involved with the drafting, to do a final read-through. This based SLA can be an efficient approach to use. often throws up potential ambiguities and difficulties that Multiple classes of service, e.g. gold, silver and bronze, can then be addressed and clarified. For this reason alone, can also be used to increase the effectiveness of it is recommended that all SLAs contain a glossary, service-based SLAs. defining any terms and providing clarity for any areas of ambiguity. Customer-based SLA This is an agreement with an individual customer 5.7.1 Service Level Requirements group covering all the services they use. For example, This is one of the earliest activities within the Service agreements may be reached with an organization’s Design stage of the Service Lifecycle. Once the Service finance department covering, say, the finance system, Catalogue has been produced and the SLA structure has the accounting system, the payroll system, the billing been agreed, a first SLR must be drafted. It is advisable to system, the procurement system, and any other IT involve customers from the outset, but rather than going systems that they use. Customers often prefer such an along with a blank sheet to start with, it may be better to agreement, as all of their requirements are covered in a produce a first outline draft of the performance targets single document. Only one signatory is normally and the management and operational requirements, as a required, which simplifies this issue. starting point for more detailed and in-depth discussion. Multi-level SLA Be careful, though, not to go too far and appear to be Some organizations have chosen to adopt a multi-level presenting the customer with a fait accompli. SLA structure. For example, a three-layer structure as It cannot be overstressed how difficult this activity of follows: determining the initial targets for inclusion with an SLR or Corporate level: covering all the generic SLM issues SLA is. All of the other processes need to be consulted for appropriate to every customer throughout the their opinion on what are realistic targets that can be organization. These issues are likely to be less achieved, such as Incident Management on incident volatile, so updates are less frequently required targets. The Capacity and Availability Management Customer level: covering all SLM issues relevant to processes will be of particular value in determining the particular customer group or business unit, appropriate service availability and performance targets. regardless of the service being used
58. Service Design – building structural service integrity | 555.7.2 Monitoring service level performance SLAs are just documents, and in themselves do notNothing should be included in an SLA unless it can be materially alter the quality of service being providedeffectively monitored and measured at a commonly (though they may affect behaviour and help engender anagreed point. The importance of this cannot be appropriate service culture, which can have an immediateoverstressed, as inclusion of items that cannot be beneficial effect, and make longer-term improvementseffectively monitored almost always results in disputes and possible). A degree of patience is therefore needed andeventual loss of faith in the SLM process. A lot of should be built into expectations.organizations have discovered this the hard way and as aresult have absorbed heavy costs, both in a financial sense 5.7.3 Key performance indicatorsas well as in terms of negative impacts on their credibility. Key performance indicators (KPIs) and metrics can be used to judge the efficiency and effectiveness of the SLMIt is essential that monitoring matches the customer’s true activities and the progress of the SIP. These metrics shouldperception of the service. Unfortunately this is often very be developed from the service, customer and businessdifficult to achieve. For example, monitoring of individual perspective and should cover both subjective andcomponents, such as the network or server, does not objective measurements such as the following.guarantee that the service will be available so far as thecustomer is concerned. Where multiple services are Objective:delivered to a single workstation, it is probably more Number or percentage of service targets being meteffective to record only downtime against the service the Number and severity of service breachesuser was trying to access at the time (though this needs Number of services with up-to-date SLAsto be agreed with the customers). Number of services with timely reports and active service reviewsThere are a number of important soft issues that cannot Subjective:be monitored by mechanistic or procedural means, suchas customers’ overall feelings (these need not necessarily Improvements in customer satisfaction.match the hard monitoring). For example, even when Practising SLM can achieve a high trust factor between thethere have been a number of reported service failures, business and the service provider. It establishes a patterncustomers may still feel positive about things, because of quality and service management practices,they may feel satisfied that appropriate actions are being demonstrated through reporting and interaction with thetaken to improve things. Of course, the opposite may customer over time, that can instil a sense of trust andapply, and customers may feel dissatisfied with some expectation from the business, which in turn engendersissues (e.g. the manner of some staff on the Service Desk) loyalty. No service provider should underestimate howwhen few or no SLA targets have been broken. important SLM is. The Service Design core publicationFrom the outset, it is wise to try to manage customers’ offers detailed guidance in SLM.expectations. This means setting proper expectations andappropriate targets in the first place, and putting a 5.8 CAPACITY MANAGEMENTsystematic process in place to manage expectations going Capacity Management is a process that extends across theforward, as satisfaction = perception – expectation (where Service Lifecycle. A key success factor in managinga zero or positive score indicates a satisfied customer). capacity is ensuring it is considered during the Service
59. 56 | Service Design – building structural service integrity Design stage. It is for this reason that the Capacity cost-effective and timely manner. Capacity Management is Management Process is included in this book. Capacity essentially a balancing act: Management is supported initially in Service Strategy Balancing costs against resources needed: the need to where the decisions and analysis of business requirements ensure that processing Capacity that is purchased is and customer outcomes influencing the development of not only cost-justifiable in terms of business need, but patterns of business activity (PBA), levels of service (LOS) also makes the most efficient use of those resources and service level packages (SLPs) are identified. This Balancing supply against demand: the need to ensure provides the predictive and ongoing capacity indicators that the available supply of IT processing power needed to align capacity to demand. An example of a matches the demands made on it by the business, component-based SLP is illustrated in Figure 5.4. both now and in the future; it may also be necessary Capacity Management ensures that the capacity and to manage or influence the demand for a particular performance of the IT services and systems match the resource. evolving agreed demands of the business in the most Figure 5.4 Component-based Service Level Package Onsite ‘24x7 Worldwide support x365’ Mobility Hardware security token Notebook PC 3G Wireless Phone Desktop Phone Office Fax Data Wireless encryption Standard Dial-tone E-mail Voice & service Data Service Components Component Customer Service service asset asset
60. Service Design – building structural service integrity | 57The objectives of Capacity Management are to: Producing a Capacity Plan that enables the Service Provider to continue to provide services of the quality Produce and maintain an appropriate and up-to-date defined in SLAs and that covers a sufficient planning Capacity Plan, which reflects the current and future timeframe to meet future service levels required as needs of the business defined in the Service Portfolio and SLRs Provide advice and guidance to all other areas of the Assistance with the identification and resolution of any business and IT on all capacity- and performance- Incidents and Problems associated with service or related issues component performance Ensure that service performance achievements meet or The proactive improvement of service or component exceed all of their agreed performance targets, by performance wherever it is cost-justifiable and meets managing the performance and capacity of both the needs of the business. services and resources Assist with the diagnosis and resolution of The elements of Capacity Management are illustrated in performance- and capacity-related incidents and Figure 5.5. problems Assess the impact of all changes on the Capacity Plan, 5.8.1 Business Capacity Management and the performance and capacity of all services and This sub-process translates business needs and plans into resources requirements for service and IT infrastructure, ensuring that Ensure that proactive measures to improve the the future business requirements for IT services are performance of services are implemented wherever it quantified, designed, planned and implemented in a timely is cost-justifiable to do so. fashion. This can be achieved by using the existing data on the current resource utilization by the various services andThe Capacity Management process should include: resources to trend, forecast, model or predict future Monitoring patterns of business activity and service requirements. These future requirements come from the level plans through performance, utilization and Service Strategy and Service Portfolio detailing new throughput of IT services and the supporting processes and service requirements, changes, improvements infrastructure, environmental, data and applications and also the growth in the already existing services. components and the production of regular and ad hoc reports on service and component capacity and 5.8.2 Service Capacity Management performance The focus of this sub-process is the management, control Undertaking tuning activities to make the most and prediction of the end-to-end performance and efficient use of existing IT resources capacity of the live, operational IT services usage and Understanding the agreed current and future demands workloads. It ensures that the performance of all services, being made by the customer for IT resources and as detailed in service targets within SLAs and SLRs, is producing forecasts for future requirements monitored and measured, and that the collected data is Influencing demand management, perhaps in recorded, analysed and reported. Wherever necessary, conjunction with Financial Management proactive and reactive action should be instigated, to ensure that the performance of all services meets their agreed business targets. This is performed by staff with
61. 58 | Service Design – building structural service integrity knowledge of all the areas of technology used in the Business Capacity Management to determine what delivery of end-to-end service, and often involves seeking infrastructure components or upgrades to components advice from the specialists involved in Resource Capacity are needed, and when Management. Wherever possible, automated thresholds The Capacity Plan: used by all areas of the business should be used to manage all operational services to and IT management and is acted on by the IT Service ensure that situations where service targets are breached Provider and senior management of the organization or threatened are rapidly identified and cost-effective to plan the capacity of the IT infrastructure, it also actions to reduce or avoid their potential impact provides planning input to many other areas of IT and implemented. the business. It contains information on the current usage of service and components and plans for the 5.8.3 Component Capacity Management development of IT capacity to meet the needs in the The focus in this sub-process is the management, control growth of both existing service and any agreed new and prediction of the performance, utilization and capacity services. The Capacity Plan should be actively used as a of individual IT technology components. It ensures that all basis of decision-making. Too often Capacity Plans are components within the IT infrastructure that have finite created and never referred to or used resource are monitored and measured, and that the Service performance information and reports: used collected data is recorded, analysed and reported. Again, by many other processes. For example, the Capacity wherever possible, automated thresholds should be Management process assists Service Level Management implemented to manage all components, to ensure that with the reporting and reviewing of service situations where service targets are breached or performance and the development of new SLRs or threatened by component usage or performance are changes to existing SLAs. It also assists the Financial rapidly identified, and cost-effective actions to reduce or Management process by identifying when money avoid their potential impact are implemented. needs to be budgeted for IT infrastructure upgrades, or the purchase of new components There are many similar activities that are performed by each of the above sub-processes, but each sub-process Workload analysis and reports: used by IT operations has a very different focus. Business Capacity Management to assess and implement changes in conjunction with is focused on the current and future business Capacity Management to schedule or re-schedule requirements, while Service Capacity Management is when services or workloads are run, to ensure that the focused on the delivery of the existing services that most effective and efficient use is made of the support the business, and Component Capacity available resources Management is focused on the IT infrastructure that Ad hoc capacity and performance reports: used by underpins service provision. all areas of Capacity Management, IT and the business to analyse and resolve service and performance issues The Capacity Management Information System Forecasts and predictive reports: used by all areas to (CMIS): holds the information needed by all analyse, predict and forecast particular business and IT sub-processes within Capacity Management. For scenarios and their potential solutions example, the data monitored and collected as part of Resource and Service Capacity Management is used in Thresholds, alerts and events.
62. Service Design – building structural service integrity | 59Figure 5.5 Capacity Management elements Service Portfolio Business requirements Capacity & performance reports Business Review current Capacity Management capacity & performance IT service SLA/SLR Improve current service design & component capacity Capacity Management Information System Service Assess, agree & (CMIS) Capacity Management document new requirements & capacity Component Capacity Management Plan new capacity Forecasts Capacity Plan Capacity Management Tools
63. 60 | Service Design – building structural service integrity Additional detailed guidance can be found in the Service The Availability Management process should include: Design publication. Monitoring of all aspects of availability, reliability and maintainability of IT services and the supporting 5.9 AVAILABILITY MANAGEMENT components, with appropriate events, alarms and escalation, with automated scripts for recovery Availability Management is the window of service quality to a business customer. A Service Provider who does not Maintenance of a set of methods, techniques and apply solid practices to AM and who cannot offer reliable, calculations for all availability measurements, metrics stable service availability will never have a customer’s and reporting loyalty. Assistance with risk assessment and management activities The objectives of Availability Management are to: Collection of measurements, analysis and production of Produce and maintain an appropriate and up-to-date regular and ad hoc reports on service and component Availability Plan that reflects the current and future availability needs of the business Understanding the agreed current and future demands Provide advice and guidance to all other areas of the of the business for IT services and their availability business and IT on all availability-related issues Influencing the design of services and components to Ensure that service availability achievements meet or align with business needs exceed all of their agreed targets, by managing service- Producing an Availability Plan that enables the Service and resource-related availability performance Provider to continue to provide and improve services Assist with the diagnosis and resolution of availability- in line with availability targets defined in SLAs and to related Incidents and Problems plan and forecast future availability levels required as Assess the impact of all changes on the Availability defined in SLRs Plan and the performance and capacity of all services Maintaining a schedule of tests for all resilient and and resources failover components and mechanisms Ensure that proactive measures to improve the Assistance with the identification and resolution of any availability of services are implemented wherever it is Incidents and Problems associated with service or cost-justifiable to do so. component unavailability Availability Management should ensure the agreed level of Proactive improvement of service or component availability is provided. The measurement and monitoring availability wherever it is cost-justifiable and meets the of IT availability is a key activity to ensure availability levels needs of the business. are being met consistently. Availability Management should look to continually optimize and proactively improve the availability of the IT infrastructure, the services and the supporting organization, in order to provide cost- effective availability improvements that can deliver business and customer benefits.
64. Service Design – building structural service integrity | 61The Availability Management process (Figure 5.6) has two 5.9.1 Identifying vital business functionskey elements: The term ‘vital business function’ (VBF) is used to reflect Reactive activities: the reactive aspect of Availability the business-critical elements of the business process Management involves the monitoring, measuring, supported by an IT service. The service may also support analysis and management of all events, Incidents and less critical business functions and processes. It is Problems involving unavailability. These activities are important that the VBFs are recognized and documented principally involved within operational roles to provide the appropriate business alignment and focus. Proactive activities: the proactive activities of Availability Management involve the proactive 5.9.2 Designing for availability planning, design and improvement of availability. The level of availability required by the business influences These activities are principally involved within design the overall cost of the IT service provided. In general, the and planning roles. higher the level of availability required by the business theAvailability Management is completed at two higher the cost. These costs are not just the procurementinterconnected levels: of the base IT technology and services required to underpin the IT infrastructure. Additional costs are incurred Service availability: involves all aspects of service in providing the appropriate service management availability and unavailability and the impact of processes, systems management tools and high availability component availability, or the potential impact of solutions required to meet the more stringent availability component unavailability on service availability requirements. The greatest level of availability should be Component availability: involves all aspects of included in the design of those services supporting the component availability and unavailability. most critical of the VBFs.A guiding principle of Availability Management is to When considering how the availability requirements of therecognize that it is still possible to gain customer business are to be met, it is important to ensure that thesatisfaction even when things go wrong. One approach to level of availability to be provided for an IT service is athelp achieve this requires Availability Management to the level actually required and is affordable and cost-ensure that the duration of any Incident is minimized to justifiable to the business (Figure 5.7).enable normal business operations to resume as quickly asis possible. An aim of Availability Management is to ensurethe duration and impact from Incidents impacting ITservices are minimized, to enable business operations toresume as quickly as is possible. The analysis of the‘expanded incident lifecycle’ enables the total IT servicedowntime for any given Incident to be broken down andmapped against the major stages that all Incidentsprogress through (the lifecycle). Availability Managementshould work closely with Incident Management andProblem Management in the analysis of all Incidentscausing unavailability.
65. 62 | Service Design – building structural service integrity Figure 5.6 The Availability Management process Reactive activities Monitor, measure, analyse report & review Availability service & Management component availability Information System (AMIS) Investigate all service & component unavailability & instigate remedial Availability action Management reports Proactive activities Availability Plan Risk assessment Plan & design for & Management new & changed services Availability Implement cost – Review all new & design criteria justifiable changed services & test countermeasures all availability & resilience mechanisms Availability testing schedule 5.9.3 Service Failure Analysis opportunities to enhance levels of availability. SFA is a Service Failure Analysis (SFA) is a technique designed to structured technique to identify improvement provide a structured approach to identifying the opportunities in end-to-end service availability that can underlying causes of service interruptions to the user. SFA deliver benefits to the user. Many of the activities involved utilizes a range of data sources to assess where and why in SFA are closely aligned with those of Problem shortfalls in availability are occurring. SFA enables a holistic Management and in a number of organizations these view to be taken to drive not just technology activities are performed jointly by Problem and Availability improvements, but improvements to the IT support Management. organization, processes, procedures and tools. SFA is run The high-level objectives of SFA are: as an assignment or project and may utilize other To improve the overall availability of IT services by Availability Management methods and techniques to producing a set of improvements for implementation formulate the recommendations for improvement. The or input to the Availability Plan detailed analysis of service interruptions can identify
66. Service Design – building structural service integrity | 63Figure 5.7 Relationship between levels of availability and overall costs Special solutions with redundancy High availability design Costs Effective Service Management Systems Management Base products, technology and components Availability To identify the underlying causes of service interruption business) and involve resources from many technical and to users process areas. The use of the SFA approach: To assess the effectiveness of the IT support Provides the ability to deliver enhanced levels of organization and key processes availability without major cost To produce reports detailing the major findings and Provides the business with visible commitment from recommendations the IT support organization To ensure availability improvements derived from SFA- Develops in-house skills and competencies to avoid driven activities are measured. expensive consultancy assignments related toSFA initiatives should use input from all areas and all availability improvementprocesses including, most importantly, the business and Encourages cross-functional team working and breaksusers. Each SFA assignment should have a recognized barriers between teams and is an enabler to lateralsponsor(s) (ideally, joint sponsorship from the IT and thinking, challenging traditional thoughts and providing innovative and often inexpensive solutions
67. 64 | Service Design – building structural service integrity Provides a programme of improvement opportunities 5.10 IT SERVICE CONTINUITY MANAGEMENT that can make a real difference to service quality and Service failures of extreme magnitude are not something user perception any business or service provider wants to experience. Even Provides opportunities that are focused on delivering the best-planned and managed services however, can be benefit to the user the victim of catastrophic failure through events that are Provides an independent healthcheck of IT service not in the direct control of a service provider. management processes and is the stimulus for process improvements. Most of us purchase insurance to protect us in the event something of great value, such as our home, becomes the Designing for availability is a key activity, driven by victim of a catastrophic event. Insurance gives us peace of Availability Management, which ensures that the stated mind that if the unplanned happens, we have the means availability requirements for an IT service can be met. to recover from such disasters. The amount of insurance However, Availability Management should also ensure that we purchase is gauged on the predicted replacement within this design activity there is focus on the design value of our possessions, the likelihood such a disaster elements required to ensure that when IT services fail, the could happen and how quickly we can restore our losses. service can be reinstated to enable normal business This is a form of risk management. operations to resume as quickly as is possible. ‘Designing for Recovery’ may at first sound negative. Clearly good IT Service Continuity Management is the part of ITIL availability design is about avoiding failures and delivering practice that evaluates the level of insurance we need to where possible a fault-tolerant IT infrastructure. However, protect service assets and a manuscript to recover from a with this focus, is too much reliance placed on technology disaster. and has as much emphasis been placed on the fault- The goal of ITSCM is to support the overall Business tolerant aspects of the IT infrastructure? The reality is that Continuity Management process by ensuring that the failures will occur. The way the IT organization manages required IT technical and service facilities (including failure situations can have a positive effect on the computer systems, networks, applications, data perception of the business, customers and users of the IT repositories, telecommunications, environment, technical services. support and Service Desk) can be resumed within Key message required, and agreed, business timescales. Every failure is an important moment of truth – an The objectives of ITSCM are to: opportunity to make or break your reputation with the business. Maintain a set of IT Service Continuity Plans and IT recovery plans that support the overall Business The process of Availability Management contains a Continuity Plans (BCPs) of the organization number of methods, techniques and practices for Complete regular Business Impact Analysis (BIA) assessing, preventing and analysing service failures. exercises to ensure that all continuity plans are Details about these methods can be found in the maintained in line with changing business impacts and Service Design publication. requirements
68. Service Design – building structural service integrity | 65 Conduct regular risk assessment and management Production of ITSCM plans, which again must be exercises in conjunction particularly with the business integrated with the overall BCM plans and the Availability Management and Security Testing of the plans Management processes that manages IT services within The ongoing operation and maintenance of the plans. an agreed level of business risk Service continuity is implemented and managed in four Provide advice and guidance to all other areas of the stages (Figure 5.8): business and IT on all continuity- and recovery-related issues 1 Initiation – Policy setting, defining scope and terms of Ensure that appropriate continuity and recovery reference, project planning and resource allocation mechanisms are put in place to meet or exceed the 2 Requirements and strategy – Business impact agreed business continuity targets analysis, risk assessment Assess the impact of all changes on the IT Service Continuity Plans and IT recovery plans 3 Implementation – Executing risk reduction measures, recovery option arrangements, testing the plans Ensure that proactive measures to improve the availability of services are implemented wherever it is 4 Ongoing operation – Education and awareness, cost-justifiable to do so change control of ITSCM plans, ongoing testing. Negotiate and agree the necessary contracts with A good place to start is by assessing the threats and risks suppliers for the provision of the necessary recovery to VBFs (as described in the preceding section on capability to support all continuity plans in conjunction Availability Management). This will help reveal with the Supplier Management process. vulnerabilities to vital business operations and ensure thatThe ITSCM process includes: preventative and recovery plans and mechanisms are in place. Consistent with the ITSCM process, this should be The agreement of the scope of the ITSCM process and continually evaluated to ensure that changes to services or the policies adopted business requirements have not affected the ability of the Business Impact Analysis (BIA) to quantify the impact ITSCM process to be effective when needed. that loss of IT service would have on the business Risk analysis – the risk identification and risk The Service Design core publication offers detailed assessment to identify potential threats to continuity guidance on how to establish and maintain ITSCM. and the likelihood of the threats becoming reality. This also includes taking measures to manage the identified threats where this can be cost-justified Production of an overall ITSCM strategy that must be integrated into the BCM strategy. This can be produced following the two steps identified above and is likely to include elements of risk reduction as well as selection of appropriate and comprehensive recovery options
69. 66 | Service Design – building structural service integrity Figure 5.8 Service Continuity lifecycle Lifecycle Key activities Business Policy setting Continuity Initiation Scope Management (BCM) Initiate a project Business Impact Analysis Requirements Business Risk Assessment Continuity and strategy IT Service Continuity Strategy Strategy Develop IT Service Continuity Plans Business Develop IT plans, recovery plans and Continuity Plans Implementation procedures Organisation Planning Testing strategy Education, awareness and training Ongoing Review and audit Invocation Operation Testing Change Management 5.11 INFORMATION SECURITY MANAGEMENT purpose of ISM is to provide a focus for all aspects of IT security and manage all IT security activities. Across the world, organizations create value through the intellectual property they own and use to deliver products The term ‘information’ is used as a general term and and services. Protecting intellectual capital is a primary includes data stores, databases and metadata. The need for business and is increasingly legislated by law. The objective of information security is to protect the interests technology today offers us unlimited potential to create, of those relying on information, and the systems and gather and amass vast quantities of information. A service communications that deliver the information, from harm provider is responsible to ensure that they can guarantee resulting from failures of availability, confidentiality and the business information is protected from intrusion, theft, integrity. loss and unauthorized access. For most organizations, the security objective is met when: Information security is a management activity within the Information is available and usable when required, and corporate governance framework, which provides the the systems that provide it can appropriately resist strategic direction for security activities and ensures attacks and recover from or prevent failures objectives are achieved. It further ensures that that the (availability) information security risks are appropriately managed and Information is observed by or disclosed to only those enterprise information resources are used responsibly. The who have a right to know (confidentiality)
70. Service Design – building structural service integrity | 67 Information is complete, accurate and protected SLRs, SLAs, contracts and agreements. The policies should against unauthorized modification (integrity) be authorized by top executive management within the Business transactions as well as information exchanges business and IT, and compliance to them should be between enterprises, or with partners, can be trusted endorsed on a regular basis. All security policies should be (authenticity and non-repudiation). reviewed and where necessary revised on at least an annual basis.Prioritization of confidentiality, integrity and availabilitymust be considered in the context of business and The five elements within an Information Securitybusiness processes. The primary guide to defining what Management System (ISMS) framework are:must be protected and the level of protection has to come Controlfrom the business. To be effective, security must address The objectives of the control element of the ISMS areentire business processes from end to end and cover the to:physical and technical aspects. Only within the context of Establish a management framework to initiate andbusiness needs and risks can management define security. manage information security in the organizationISM activities should be focused on and driven by an Establish an organization structure to prepare,overall Information Security Policy and a set of approve and implement the information securityunderpinning specific security policies. The policy should policyhave the full support of top executive IT management and Allocate responsibilitiesideally the support and commitment of top executive Establish and control documentationbusiness management. The policy should cover all areas of Plansecurity, be appropriate, meet the needs of the businessand should include: The objective of the plan element of the ISMS is to devise and recommend the appropriate security An overall Information Security Policy measures, based on an understanding of the Use and misuse of IT assets policy requirements of the organization. An access control policy The requirements will be gathered from such sources A password control policy as business and service risk, plans and strategies, SLAs An e-mail policy and OLAs and the legal, moral and ethical An internet policy responsibilities for information security. Other factors, An anti-virus policy such as the amount of funding available and the prevailing organization culture and attitudes to An information classification policy security, must be considered. A document classification policy The Information Security Policy defines the A remote access policy organization’s attitude and stance on security matters. A policy with regard to supplier access of IT services, This should be an organization-wide document, not information and components just applicable to the IT Service Provider. Responsibility An asset disposal policy. for the upkeep of the document rests with theThese policies should be widely available to all customers Information Security Managerand users and their compliance should be referred to in all
71. 68 | Service Design – building structural service integrity Implement This should be achieved using a PDCA (Plan-Do- The objective of the implementation element of the Check-Act) cycle, which is a formal approach ISMS is to ensure that appropriate procedures, tools suggested by ISO 27001 for the establishment of and controls are in place to underpin the Information the ISMS or Framework. This cycle is described in Security Policy. more detail in the Continual Service Improvement Amongst the measures are: publication. Accountability for assets – Configuration Security measures can be used at a specific stage in the Management and the CMS are invaluable here prevention and handling of security incidents, as illustrated Information classification – information and in Figure 5.9. Security incidents are not solely caused by repositories should be classified according to the technical threats – statistics show that, for example, the sensitivity and the impact of disclosure large majority stem from human errors (intended or not) The successful implementation of the security controls or procedural errors, and often have implications in other and measures is dependent on a number of factors: fields such as safety, legal or health. The determination of a clear and agreed policy The following stages can be identified. At the start there is integrated with the needs of the business a risk that a threat will materialize. A threat can be Security procedures that are justified, appropriate anything that disrupts the business process or has and supported by senior management negative impact on the business. When a threat Effective marketing and education in security materializes, we speak of a security incident. This security requirements incident may result in damage (to information or to assets) A mechanism for improvement that has to be repaired or otherwise corrected. Suitable Evaluation measures can be selected for each of these stages. The The objectives of the evaluation element of the ISMS choice of measures will depend on the importance are to: attached to the information: Supervise and check compliance with the security Preventive: security measures are used to prevent a policy and security requirements in SLAs and OLAs security incident from occurring. The best-known Carry out regular audits of the technical security of example of preventive measures is the allocation of IT systems access rights to a limited group of authorized people. Provide information to external auditors and The further requirements associated with this measure regulators, if required include the control of access rights (granting, Maintain maintenance and withdrawal of rights), authorization The objectives of this maintain element of the ISMS are (identifying who is allowed access to which to: information and using which tools), identification and authentication (confirming who is seeking access) and Improve on security agreements as specified in, for access control (ensuring that only authorized personnel example, SLAs and OLAs can gain access) Improve the implementation of security measures and controls
72. Service Design – building structural service integrity | 69Figure 5.9 IT Security Management process Produce and maintain an Information Security Policy Assess and categorise Communicate, information assets, implement and Monitor and risks and enforce adherence manage security vulnerabilities to all security incidents and policies breaches Regularly assess, review and report security risks and threats Impose and Report, review review risk and reduce security security controls, breaches and review and major incidents implement risk mitigation Information Security Information Security reports Security Security risks Management Security Policy(s) and information controls and responses System (ISMS) Reductive: further measures can be taken in advance Corrective: damage is repaired as far as possible using to minimize any possible damage that may occur. corrective measures. For example, corrective measures Familiar examples of reductive measures are making include restoring the backup, or returning to a regular backups and the development, testing and previous stable situation (roll-back, back-out). Fallback maintenance of contingency plans can also been seen as a corrective measure. Detective: if a security incident occurs, it is important The documentation of all controls should be maintained to discover it as soon as possible – detection. A familiar to reflect accurately their operation, maintenance and their example of this is monitoring, linked to an alert method of operation. procedure. Another example is virus-checking software Repressive: measures are then used to counteract any ISM faces many challenges in establishing an appropriate continuation or repetition of the security incident. For Information Security Policy with an effective supporting example, an account or network address is temporarily process and controls. One of the biggest challenges is to blocked after numerous failed attempts to log on or ensure that there is adequate support from the business, the retention of a card when multiple attempts are business security and senior management. If these are not made with a wrong PIN number available, it will be impossible to establish an effective ISM process. If there is senior IT management support, but
73. 70 | Service Design – building structural service integrity there is no support from the business, IT security controls of suppliers and partners are essential to the provision of and risk assessment will be severely limited in what they quality IT services (see Figure 5.10). can achieve because of this lack of support from the The main objectives of the Supplier Management process business. It is pointless implementing security policies, are to: procedures and controls in IT if these cannot be enforced throughout the business. The major use of IT services and Obtain value for money from supplier and contracts assets is outside of IT, and so are the majority of security Ensure that underpinning contracts and agreements threats and risks. with suppliers are aligned to business needs, and support and align with agreed targets in SLRs and In some organizations the business perception is that SLAs, in conjunction with SLM security is an IT responsibility, and therefore the business assumes that IT will be responsible for all aspects of IT Manage relationships with suppliers security and that IT services will be adequately protected. Manage supplier performance However, without the commitment and support of the Negotiate and agree contracts with suppliers and business and business personnel, money invested in manage them through their lifecycle expensive security controls and procedures will be largely Maintain a supplier policy and a supporting supplier wasted and they will mostly be ineffective. and contract database (SCD). Refer to the Service Design core publication for further The Supplier Management process should include: guidance and detailed practices on Information Security Implementation and enforcement of the supplier policy Management. Maintenance of an SCD Supplier and contract categorization and risk 5.12 SUPPLIER MANAGEMENT assessment The Supplier Management process ensures that suppliers Supplier and contract evaluation and selection and the services they provide are managed to support IT Development, negotiation and agreement of contracts service targets and business expectations. The aim of this Contract review, renewal and termination section is to raise awareness of the business context of Management of suppliers and supplier performance working with partners and suppliers, and how this work Agreement and implementation of service and supplier can best be directed toward realizing business benefit for improvement plans the organization. Maintenance of standard contracts, terms and It is essential that Supplier Management processes and conditions planning are involved in all stages of the Service Lifecycle, Management of contractual dispute resolution from strategy and design, through transition and operation, Management of sub-contracted suppliers. to improvement. The complex business demands require IT supplier management often has to comply with the complete breadth of skills and capability to support organizational or corporate standards, guidelines and provision of a comprehensive set of IT services to a requirements, particularly those of corporate legal, finance business, therefore the use of value networks and the and purchasing. suppliers and the services they provide are an integral part of any end-to-end solution. Suppliers and the management
74. Service Design – building structural service integrity | 71Figure 5.10 Supplier Management – roles and interfaces Service Provider Supplier Mgt. Finance & Process Owner Purchasing Contracts Manager Legal Supplier Supplier Supplier Supplier Manager 1 Manager 2 Manager 3 Manager 4 Service Service Service Service Service Service Supplier 6 Supplier 5 Supplier 4 Supplier 3 Supplier 2 Supplier 1 Sub-contracted Supplier 2 Sub-contracted Supplier 1Satisfaction surveys also play an important role in conjunction with the procurement department) and IT willrevealing how well supplier service levels are aligned to have established their objectives for the relationship, andbusiness needs. A survey may reveal instances where there defined the benefits they expect to realize. This forms ais dissatisfaction with the service, yet the supplier is major part of the business case for entering into theapparently performing well against its targets (and vice relationship.versa). This may happen where service levels are These benefits must be linked and complementary, andinappropriately defined and should result in a review of must be measured and managed. Where the business isthe contracts, agreements and targets. Some service seeking improvements in customer service, then ITproviders publish supplier league tables based on their supplier relationships contributing to those customersurvey results stimulating competition between suppliers. services must be able to demonstrate improved service inFor those significant supplier relationships in which the their own domain, and how much this has contributed tobusiness has a direct interest, both the business (in improved customer service.
75. 72 | Service Design – building structural service integrity Strong, trusted relationships with suppliers are an integral element of successful service management and enhance the value of any service provider to the business. The Service Design book contains all the details to guide you through Supplier Management and achieve this level of relationships with suppliers.
76. Service Transition –preparing for change 6
77. | 756 Service Transition – preparing for change Requirements The business/customers Service Objectives from Strategy Resource and Requirements Constraints Policies Strategies Service SDPs Design Standards Architectures Solution Designs Service Transition SKMS Tested Transition Solutions PlansIn the IT world, many business innovations are achieved In this chapter we will discuss a few of the key conceptsthrough project initiatives that involve IT. In the end, within Service Transition:whether these are minor operational improvements or Transition Planningmajor transformational events, they all produce change. In Asset and Configuration Managementthe preceding chapter we looked at creating andimproving services through the design stage of the Release and Deployment Managementlifecycle. Now we must ensure that what is planned to be Change Managementimplemented will achieve the expected objectives. It is at Testing and Validation.this point the knowledge that has been generated and The purpose of Service Transition is to:that will be needed to manage services once in the liveenvironment, must be managed and shared across the Plan and manage the capacity and resources requiredorganization. This is done through Service Transition. to package, build, test and deploy a release into production and establish the service specified in the customer and stakeholder requirements
78. 76 | Service Transition – preparing for change Provide a consistent and rigorous framework for The predictions of service levels and warranties for new evaluating the service capability and risk profile before and changed services a new or changed service is released or deployed Confidence in the degree of compliance with business Establish and maintain the integrity of all identified and governance requirements during change service assets and configurations as they evolve The variation of actual against estimated and approved through the Service Transition stage resource plans and budgets Provide good-quality knowledge and information so The productivity of business and customer staff that Change and Release and Deployment because of better planning and use of new and Management can expedite effective decisions about changed services promoting a release through the test environments Timely cancellation or changes to maintenance and into production contracts for hardware and software when components Provide efficient repeatable build and installation are disposed or decommissioned mechanisms that can be used to deploy releases to the Understanding of the level of risk during and after test and production environments and be rebuilt if change, e.g. service outage, disruption and re-work. required to restore service The processes covered in Service Transition (see Figure 6.1) Ensure that the service can be managed, operated and are: supported in accordance with the requirements and constraints specified within the Service Design. Transition Planning and Support Effective Service Transition can significantly improve a Change Management Service Provider’s ability to handle high volumes of Service Asset and Configuration Management change and releases across its customer base. It enables Release and Deployment Management the Service Provider to: Service Validation and Testing Align the new or changed service with the customer’s Evaluation business requirements and business operations Knowledge Management. Ensure that customers and users can use the new or changed service in a way that minimizes value to the 6.1 TRANSITION PLANNING AND SUPPORT business operations. The goals of Transition Planning and Support are to: Specifically, Service Transition adds value to the business Plan and coordinate the resources to ensure that the by improving: requirements of Service Strategy encoded in Service The ability to adapt quickly to new requirements and Design are effectively realized in Service Operations market developments (‘competitive edge’) Identify, manage and control the risks of failure and Transition management of mergers, de-mergers, disruption across transition activities. acquisitions and transfer of services The objectives of Transition Planning and Support are to: The success rate of changes and releases for the business Plan and coordinate the resources to establish successfully a new or changed service into production within the predicted cost, quality and time estimates
79. Service Transition – preparing for change | 77Figure 6.1 The Service Transition process Continual Service Improvement Change Management (4.2) RFC1 RFC2 RFC3 RFC4 RFC5 RFC6 Service Asset and Configuration Management (4.3) BL BL BL BL BL BL BL Service Transition Planning and Support (4.1) Oversee management of organization and stakeholder change (5) Evaluation of a Change or Service (4.6) E1 E2 E3 Plan and Service Plan and Transfer, Review and Service Service Build and Service prepare testing and prepare for deploy, close service Strategy Design test Operation release pilots deployment retire transition Early Life Support Release and Deployment Management (4.4) Service Validation and Testing (4.5) Knowledge Management (4.7) Focus of activity ITIL process in this Point to Evaluate the Service Design E related to Other ITIL core publication that supports service publication the whole transition service life cycle Point to capture Baseline BL Request for Change RFC
80. 78 | Service Transition – preparing for change Ensure that all parties adopt the common framework it in a Service Design Package (SDP). The SDP includes the of standard re-usable processes and supporting following information that is required by the Service systems in order to improve the effectiveness and Transition team: efficiency of the integrated planning and coordination Applicable service packages (e.g. Core Service Package, activities Service Level Package) Provide clear and comprehensive plans that enable the Service specifications customer and business change projects to align their Service models activities with the Service Transition plans. Architectural design required to deliver the new or The organization should decide the most appropriate changed Service including constraints approach to Service Transition based on the size and Definition and design of each release package nature of the core and supporting services, the number Detailed design of how the service components will be and frequency of releases required, and any special needs assembled and integrated into a release package of the users – for example, if a phased rollout is usually Release and deployment plans required over an extended period of time. Service Acceptance Criteria. The Service Transition strategy defines the overall approach to organizing Service Transition and allocating 6.1.1 Planning an individual Service resources. The aspects to consider are: Transition Purpose, goals and objectives of Service Transition The release and deployment activities should be planned Context, e.g. service customer, contract portfolios in stages as details of the deployment might not be Scope – inclusions and exclusions known in detail initially. Each Service Transition plan Applicable standards, agreements, legal, regulatory and should be developed from a proven Service Transition contractual requirements model wherever possible. Although Service Design Organizations and stakeholders involved in transition provides the initial plan, the planner will allocate specific Framework for Service Transition resources to the activities and modify the plan to fit in with any new circumstances, e.g. a test specialist may Criteria have left the organization. Identification of requirements and content of the new or changed service A Service Transition plan describes the tasks and activities People required to release and deploy a release into the test Approach environments and into production, including: Deliverables from transition activities including Work environment and infrastructure for the Service mandatory and optional documentation for each stage Transition Schedule of milestones Schedule of milestones, handover and delivery dates Financial requirements – budgets and funding. Activities and tasks to be performed Service Design will – in collaboration with customers, Staffing, resource requirements, budgets and external and internal suppliers and other relevant timescales at each stage stakeholders – develop the Service Design and document Issues and risks to be managed
81. Service Transition – preparing for change | 79 Lead times and contingency. responsibilities such as operations or through a team brought together for the purpose. Elements of theAllocating resources to each activity and factoring in deployment may be delivered through external suppliers,resource availability will enable the Service Transition and suppliers may deliver the bulk of the deploymentplanner to work out whether the transition can be effort, for example in the implementation of an off-the-deployed by the required date. If resources are not shelf system such as an ITSM support tool.available, it may be necessary to review other transitioncommitments and consider changing priorities. Such Significant deployments will be complex projects in theirchanges need to be discussed with Change and Release own right. The steps to consider in planning include theManagement as this may affect other changes that may be range of elements comprising that service, e.g. people,dependents or prerequisites of the release. application, hardware, software, documentation and knowledge. This means that the deployment will contain6.1.2 Integrated planning sub-deployments for each type of element comprising theGood planning and management are essential to deploy a service.release across distributed environments and locations intoproduction successfully. An integrated set of transition 6.1.4 Reviewing the plansplans should be maintained that are linked to lower-level The planning role should quality review all Serviceplans such as release, build and test plans. These plans Transition, release and deployment plans. Wherevershould be integrated with the change schedule, release possible, lead times should include an element ofand deployment plans. Establishing good-quality plans at contingency and be based on experience rather thanthe outset enables Service Transition to manage and merely supplier assertion. This applies even more forcoordinate the Service Transition resources, e.g. resource internal suppliers where there is no formal contract. Leadallocation, utilization, budgeting and accounting. times will typically vary seasonally and they should be factored into planning, especially for long timeframeAn overarching Service Transition plan should include the transitions, where the lead times may vary between stagesmilestone activities to acquire the release components, of a transition, or between different user locations.package the release, build, test, deploy, evaluate andproactively improve the service through early life support. Before starting the release or deployment, the ServiceIt will also include the activities to build and maintain the Transition planning role should verify the plans and askservices and IT infrastructure, systems and environments appropriate questions such as:and the measurement system to support the transition Are these Service Transition and release plans up toactivities. date? Have the plans been agreed and authorized by all6.1.3 Adopting programme and project relevant parties, e.g. customers, users, operations and management best practices support staff?It is best practice to manage several releases and Do the plans include the release dates and deliverablesdeployments as a programme, with each significant and refer to related Change Requests, Known Errorsdeployment run as a project. The actual deployment may and Problems?be carried out by dedicated staff, as part of broader
82. 80 | Service Transition – preparing for change Have the impacts on costs, organizational, technical The goals of Change Management are to: and commercial aspects been considered? Respond to the customer’s changing business Have the risks to the overall services and operations requirements while minimizing value and reducing capability been assessed? incidents, disruption and re-work Has there been a compatibility check to ensure that Respond to the business and IT requests for change the Configuration Items that are to be released are that will align the services with the business needs. compatible with each other and with Configuration Items in the target environments? Reliability and business continuity are essential for the Have circumstances changed such that the approach success and survival of any organization. Service and needs amending? infrastructure changes can have a negative impact on the business through service disruption and delay in Were the rules and guidance on how to apply it identifying business requirements, but Change relevant for current service and release packages? Management enables the service provider to add value to Do the people who need to use it understand and the business by: have the requisite skills to use it? Is the service release within the SDP and scope of what Prioritizing and responding to business and customer the transition model addresses? change proposals Has the Service Design altered significantly such that it Implementing changes that meet the customers’ is no longer appropriate? agreed service requirements while optimizing costs Have potential changes in business circumstances been Contributing to meet governance, legal, contractual identified? and regulatory requirements Reducing failed changes and therefore service Proper planning of service transition and support will disruption, defects and re-work reduce the need for corrective measures during and after Delivering change promptly to meet business release into live operation. Refer to the Service Transition timescales core publication for full details on the Transition Planning and Support process. Tracking changes through the Service Lifecycle and to the assets of its customers Contributing to better estimations of the quality, time 6.2 CHANGE MANAGEMENT and cost of change The purpose of the Change Management process is to Assessing the risks associated with the transition of ensure that: services (introduction or disposal) Standardized methods and procedures are used for Aiding productivity of staff through minimizing efficient and prompt handling of all changes disruptions due to high levels of unplanned or Emergency Change and hence minimizing service All changes to Service Assets and Configuration Items availability are recorded in the configuration management system Reducing the mean time to restore service (MTRS), via Overall business risk is optimized. quicker and more successful implementations of corrective changes
83. Service Transition – preparing for change | 81 Liaising with the business change process to identify business benefits or even having a detrimental, opportunities for business improvement. unexpected effect on the live service.Policies that support Change Management include: Who RAISED the change? Creating a culture of Change Management across the What is the REASON for the change? organization where there is zero tolerance for What is the RETURN required from the change? unauthorized change What are the RISKS involved in the change? Aligning the service Change Management process with What resources are REQUIRED to deliver the change? business, project and stakeholder change management Who is RESPONSIBLE for the build, test and processes implementation of the change? Prioritization of change, e.g. innovation vs preventive What is the RELATIONSHIP between this change and vs detective vs corrective change other changes? Establishing accountability and responsibilities for changes through the Service Lifecycle The Request for Change (RFC) is a key information source and the catalyst for the change activities of: Segregation of duty controls Establishing a single focal point for changes in order to Create and record minimize the probability of conflicting changes and Review potential disruption to the production environment Assess and evaluate Preventing people who are not authorized to make a Authorize change from having access to the production Plan environment Coordinate Integration with other service management processes Review to establish traceability of change, detect unauthorized Close. change and identify change-related incidents Change windows – enforcement and authorization for Each RFC will follow a selected Change Model that is exceptions appropriate for the nature and type of change. Change Performance and risk evaluation of all changes that Models are pre-established process flows with the impact service capability necessary steps to satisfy the type of change and level of authorization needed to properly assess risk and impact. Performance measures for the process, e.g. efficiency and effectiveness. Three basic Change Models are included in Service Transitions which can be adapted to suit individual6.2.1 The seven Rs of Change Management organizational circumstances and need.The following questions must be answered for all changes. Standard Change Model – Used for pre-authorizedWithout this information, the impact assessment cannot repetitive, low-risk, well-tested changes. Often thesebe completed, and the balance of risk and benefit to the will be the model used for service operationallive service will not be understood. This could result in the maintenance changeschange not delivering all the possible or expected
84. 82 | Service Transition – preparing for change Normal Change Model – The full model for changes Emergency Change Model – A model reserved only that must go through assessment, authorization and for highly critical changes needed to restore failed high Change Advisory Board (CAB) agreement before availability or widespread service failure, or that will implementation prevent such a failure from imminently occurring. Figure 6.2 depicts the high-level flow of a Normal Change Model. Figure 6.2 Normal Change Model Create RFC Change proposal (optional) Record the RFC Initiator requested Review RFC Change Update change and configuration information in CMS Management ready for evaluation Assess and evaluate change ready for decision Work orders Authorize Authorize Change proposal Change Change Authority authorized Plan updates Change Management scheduled Work orders Co-ordinate change implementation* Change Management implemented Evaluation report Review and close change record closed *Includes build and test the change
85. Service Transition – preparing for change | 836.2.2 Change Advisory Board on one another. If one system fails, the others willThe CAB is a body that exists to support the authorization eventually succumb, unless provided additional life-of changes and to assist Change Management in the supporting intervention. Services are systems with similarassessment and prioritization of changes. As and when a levels of interdependency. These are service assets whichCAB is convened, members should be chosen who are have configurations specific to the functions they performcapable of ensuring that all changes within the scope of and, ultimately, the service they collectively deliver.the CAB are adequately assessed from both a business and No organization can be fully efficient or effective unless ita technical viewpoint. manages its assets well, particularly those assets that areThe CAB may be asked to consider and recommend the vital to the running of the customer’s or organization’sadoption or rejection of changes appropriate for higher business. This process manages the service assets in orderlevel authorization and then recommendations will be to support the other service management processes.submitted to the appropriate change authority. The goal of optimizing the performance of service assetsTo achieve this, the CAB needs to include people with a and configurations improves the overall serviceclear understanding across the whole range of stakeholder performance and optimizes the costs and risks caused byneeds. The Change Manager will normally chair the CAB poorly managed assets, e.g. service outages, fines, correctand potential members include: licence fees and failed audits. Customer(s) Service Asset and Configuration Management (SACM) provides visibility of accurate representations of a service, User manager(s) release, or environment that enable: User group representative(s) Applications developers/maintainers Better forecasting and planning of changes Specialists/technical consultants Changes and releases to be assessed, planned and Services and operations staff, e.g. Service Desk, test delivered successfully management, ITSCM, security, capacity Incidents and Problems to be resolved within the Facilities/office services staff (where changes may affect service level targets moves/accommodation and vice versa) Service levels and warranties to be delivered Contractor’s or third parties’ representatives, e.g. in Better adherence to standards, legal and regulatory outsourcing situations. obligations (fewer non-conformances) More business opportunities as able to demonstrateThe Service Transition core publication contains the full control of assets and servicesChange Management process. Changes to be traceable from requirements Creation of the ability to identify the costs for a service.6.3 ASSET AND CONFIGURATION MANAGEMENT 6.3.1 Configuration ItemsWithin the human body lie a number of intricate systems. A Configuration Item (CI) is an asset, service component orThe respiratory, nervous and circulatory systems have other item which is, or will be, under the control ofdistinct functions, but they also have a critical dependency Configuration Management. CIs may vary widely in
86. 84 | Service Transition – preparing for change complexity, size and type, ranging from an entire service Internal CIs comprising those delivered by individual or system including all hardware, software, documentation projects, including tangible (data centre) and and support staff to a single software module or a minor intangible assets such as software that are required to hardware component. CIs may be grouped and managed deliver and maintain the service and infrastructure together, e.g. a set of components may be grouped into a External CIs such as external customer requirements release. CIs should be selected using established selection and agreements, releases from suppliers or sub- criteria, grouped, classified and identified in such a way contractors and external services that they are manageable and traceable throughout the Interface CIs that are required to deliver the end-to- Service Lifecycle. end service across a Service Provider Interface (SPI). There will be a variety of CIs; the following categories may help to identify them. 6.3.2 Configuration Management System To manage large and complex IT services and Service Lifecycle CIs such as the Business Case, infrastructures, Service Asset and Configuration service management plans, Service Lifecycle plans, Management (SACM) requires the use of a supporting Service Design Package, release and change plans, and system known as the Configuration Management System test plans. They provide a picture of the Service (CMS). Provider’s services, how these services will be delivered, what benefits are expected, at what cost, The CMS holds all the information for CIs within the and when they will be realized designated scope. Some of these items will have related Service CIs such as: specifications or files that contain the contents of the item, Service capability assets: management, e.g. software, document or photograph. For example, a organization, processes, knowledge, people Service CI will include the details such as supplier, cost, Service resource assets: financial capital, systems, purchase date and renewal date for licences and applications, information, data, infrastructure and maintenance contracts and the related documentation facilities, people such as SLAs and underpinning contracts. Service model The CMS is also used for a wide range of purposes; for Service package example asset data held in the CMS may be made Release package available to external financial asset management systems Service acceptance criteria to perform specific asset management process reporting Organization CIs – some documentation will define outside configuration management. the characteristics of a CI whereas other documentation will be a CI in its own right and need The CMS maintains the relationships between all service to be controlled, e.g. the organization’s business components and any related incidents, problems, known strategy or other policies that are internal to the errors, change and release documentation and may also organization but independent of the Service Provider. contain corporate data about employees, suppliers, Regulatory or statutory requirements also form external locations and business units, customers and users. products that need to be tracked, as do products shared between more than one group
87. Service Transition – preparing for change | 85Attributes for Configuration Items CI information is critical for responsive service provisionAttributes describe the characteristics of a CI that are and assists in areas such as:valuable to record and which will support SACM and the Service Desk – impact of service failure, SLA targetsITSM processes it supports. associated to the service that the CI(s) are supporting,The SACM plan references the configuration information owner and technical support information, recentand data architecture. This includes the attributes to be changes to the CI to aid in Incident triagerecorded for each type of asset or CI. Typical attributes Event Management – trending of events loggedinclude: against CI for possible service stability issues Incident Management – logging of faults against CIs Unique identifier and ability to see upstream and downstream impacts CI type Financial Management – asset and replacement Name/description lifecycle information, contributing the service valuation Version (e.g. file, build, baseline, release) activities Location Availability and Continuity – identification of point of Supply date failure vulnerability through CI relationship and Licence details, e.g. expiry date redundancy information in the CMS Owner/custodian Service Level Management – identifying dependencies Status and relationships of components that contribute to an Supplier/source end-to-end service Related document masters Change Management – identification of impact of Related software masters changes to services. Historical data, e.g. audit trail Relationship type Applicable SLA.These attributes will define specific functional and physicalcharacteristics of each type of asset and CI, e.g. size orcapacity, together with any documentation orspecifications.The business value of SACM is often not recognized untilthe use of the CMS is used with other servicemanagement processes within the Service Lifecycle. TheCMS is part of a larger Service Knowledge ManagementSystem (see the Service Transition core publication) thatdrives the effectiveness and value of service knowledge.
88. 86 | Service Transition – preparing for change Figure 6.3 Service Asset and Configuration Management – interfaces to the lifecycle Planning, management resources, time Management support Working relationships Resources, facilities, CMS and tools Training and Guidance Policy, Standards, Strategy, Control Configuration Management Service Portfolio, Management Plan, and Planning Customer Portfolio, Contract Contract Portfolio, Contract requirements CI Identification, Requirements naming, labelling, Design, Configuration data and Maintenance, Identification documentation Release, Baseline and Release Deployment, Id Operations plans Configuration Updated RFC, RFC/ Control updated CI change to CI Status Status Record/Report Accounting and Configuration Change and information and Configuration Reporting Performance Records and Documentation Verification Action items Physical CIs, and Audit Confidence Test results in service Audit/discovery and Feedback infrastructure tools 6.4 RELEASE AND DEPLOYMENT Improving consistency in implementation approach MANAGEMENT across the business change and service teams, suppliers and customers Effective Release and Deployment Management practices Contributing to meeting auditable requirements for enable the Service Provider to add value to the business by: traceability through Service Transition. Delivering change, faster and at optimum cost and Well-planned and implemented release and deployment minimized risk will make a significant difference to an organization’s Assuring that customers and users can use the new or service costs. A poorly designed release or deployment changed service in a way that supports the business will, at best, force IT personnel to spend significant goals amounts of time troubleshooting problems and managing
89. Service Transition – preparing for change | 87complexity. At worst, it can cripple the environment and There is knowledge transfer to enable the customersdegrade the live services. and users to optimize their use of the service to support their business activitiesThe goal of Release and Deployment Management is todeploy releases into production and enable effective use Skills and knowledge are transferred to operations andof the service in order to deliver value to the customer. support staff to enable them to effectively and efficiently deliver, support and maintain the serviceThe objective of Release and Deployment Management is according to required warranties and service levelsto ensure that: There is minimal unpredicted impact on the There are clear and comprehensive release and production services, operations and support deployment plans that enable the customer and organization business change projects to align their activities with Customers, users and service management staff are these plans satisfied with the Service Transition practices and A release package can be built, installed, tested and outputs, e.g. user documentation and training. deployed efficiently to a deployment group or target A key to Release and Deployment Management is defining environment successfully and on schedule the appropriate release package type for a given type of A new or changed service and its enabling systems, release. Figure 6.4 illustrates one example of a release technology and organization are capable of delivering package. the agreed service requirements, i.e. utilities, warranties and service levelsFigure 6.4 Example of a release package Release Current Baseline (as-is) Package Target Baseline (to-be) Business/Organization Business/Organization BA RO1 Architecture Architecture Delivery, feedback Delivery, feedback and monitoring and monitoring Service Service Service Architecture SA RO1 Service Architecture Portfolio Portfolio Supported by Supported by Application Information and Application Information and Architecture Data Architecture AA RO1 Architecture Data Architecture Using Manipulated Using Manipulated by by Technology Technology Architecture Architecture TA RO1 Product Product Architecture Architecture Build and Test
90. 88 | Service Transition – preparing for change The general aim is to decide the most appropriate release- suppliers, are installed and configured together to create unit level for each service asset or component. An the solution as designed. Standardization facilitates the organization may, for example, decide that the release unit integration of the different building blocks to provide a for business critical applications is the complete working solution and service. application in order to ensure that testing is Automating the installation of systems and application comprehensive. The same organization may decide that a software onto servers and workstations reduces the more appropriate release unit for a website is at the page dependencies on people and streamlines the procedures. level. Depending on the release and deployment plans, the The following factors should be taken into account when installation may be performed in advance (for example, deciding the appropriate level for release units: if equipment is being replaced) or it may have to occur in situ in the live environment. The ease and amount of change necessary to release and deploy a release unit The physical infrastructure elements, together with the The amount of resources and time needed to build, environment in which they will operate, need to be tested test, distribute and implement a release unit appropriately. Part of the testing may be to test the The complexity of interfaces between the proposed replication of the infrastructure solution from one unit and the rest of the services and IT infrastructure environment to another. This gives a better guarantee The storage available in the build, test, distribution and that the rollout to the production environment will be live environments. successful. Test environments must be actively maintained and 6.5 SERVICE VALIDATION AND TESTING protected using service management best practices. For any significant change to a service, the question should be RELEASES asked (as it is for the continued relevance of continuity Effective build and test environment management is and capacity plans): ‘If this change goes ahead, will there essential to ensure that the builds and tests are executed need to be a consequential change to the test data?’ in a repeatable and manageable manner. Inadequate During the build and test activities, operations and control of these environments means that unplanned support teams need to be kept fully informed and changes can compromise the testing activities and/or involved as the solution is built to facilitate a structured cause significant re-work. Dedicated build environments transfer from the project to the operations team. should be established for assembling and building the Figure 6.5 provides an example of service testing through components for controlled test and deployment the Service Transition stage of the lifecycle. environments. There is an invisible separation between Change, Preparation of the test environments includes building, Configuration, Release and Deployment. Each works hand changing or enhancing the test environments ready to in hand to ensure minimal disruption and risk to the receive the release. business during service transition. The Service Transition An IT service is, on most occasions, built from a number of core publication contains full details of each of these technology resources or management assets. In the build important processes and guidance on how to implement phase, these different blocks, often from different and use them.
91. Service Transition – preparing for change | 89Figure 6.5 Service testing and validation E1 Service E3 Service E2 Service Evaluation Design Evaluation Acceptance Evaluation prior to Deployment prior to Closure Evaluation E1 E2 E3 Service Design Release Packaging and Build Deployment and Early Life Support Service Operation and CSI Service *SORT Pilot Pilot Release Test Validate Service Design Release Package Test Service Requirement Test SLM and reporting Service Management Test CSI performance measurement Operations Test Operations test Facilities User Test User testing (sampling at user locations etc) Deployment Tests SPI, Contract and Compliance Tests Verify service assets and components Verify environment against expected requirements (inc. configuration audit) Validation Verification *Service Operational Readiness Test
92. Service Operation 7
93. | 937 Service Operation Requirements The business/customers Service Objectives Strategy Resource and from Requirements Policies Constraints Strategies Service Design SDPs Standards Solution Architectures Designs Service Transition Tested SKMS Transition solutions Plans Service Operational Operation servicesSo far, we have learned some of the key concepts of ITIL support services. Management of the infrastructure andService Management – Strategy, Design and Transition. the operational activities must always support thisEach of these has demonstrated how they contribute to purpose.service quality, but it is in Service Operation that the Well-planned and implemented processes will be to nobusiness customer sees the quality of the strategy, the avail if the day-to-day operation of those processes is notdesign and the transition come to life in everyday use of properly conducted, controlled and managed. Nor willthe services. service improvements be possible if day-to-day activitiesService Operation is the phase in the ITIL Service to monitor performance, assess metrics and gather dataManagement Lifecycle that is responsible for business-as- are not systematically conducted during Service Operation.usual activities. The purpose of Service Operation is to coordinate andService Operation can be viewed as the ‘factory’ of IT. carry out the activities and processes required to deliverThis implies a closer focus on the day-to-day activities and and manage services at agreed levels to business usersinfrastructure that are used to deliver services. The and customers. Service Operation is also responsible foroverriding purpose of Service Operation is to deliver and
94. 94 | Service Operation the ongoing management of the technology that is used evaluation of the impact a deviation might cause to the to deliver and support services. services. Events are typically notifications created by an IT service, Configuration Item (CI) or monitoring tool (see Figure 7.1). 7.1 BUSINESS VALUE Effective Service Operation is dependent on knowing the Each stage in the ITIL Service Management Lifecycle status of the infrastructure and detecting any deviation provides value to business. For example, service value is from normal or expected operation. This is provided by modelled in Service Strategy; the cost of the service is good monitoring and control systems, which are based on designed, predicted and validated in Service Design and two types of tools: Service Transition; and measures for optimization identified in Continual Service Improvement. The operation of Active monitoring tools that poll key CIs to determine service is where these plans, designs and optimizations are their status and availability. Any exceptions will executed and measured. From a customer viewpoint, generate an alert that needs to be communicated to Service Operation is where actual value is seen. the appropriate tool or team for action In all stages of the ITIL Service Management Lifecycle, Passive monitoring tools that detect and correlate there are distinct processes, functions and activities which operational alerts or communications generated by CIs. work together to deliver the objectives of Service Event Management can be applied to any aspect of Operation. The following sections in this chapter touch on: service management that needs to be controlled and The processes of: which can be automated. These include: Event Management Configuration Items: Request Fulfilment Some CIs will be included because they need to stay in a constant state (e.g. a switch on a network Incident Management needs to stay on and Event Management tools Problem Management confirm this by monitoring responses to ‘pings’) Access Management Some CIs will be included because their status The functions of: needs to change frequently and Event Management can be used to automate this and update the CMS Service Desk (e.g. the updating of a file server) Technical Management Environmental conditions (e.g. fire and smoke IT Operations Management detection) Application Management Software licence monitoring for usage to ensure Monitoring and Control. optimum/legal licence utilization and allocation Security (e.g. intrusion detection) 7.2 EVENT MANAGEMENT Normal activity (e.g. tracking the use of an application or the performance of a server). An event can be defined as any detectable or discernible occurrence that has significance for the management of the IT infrastructure or the delivery of IT service and
95. Service Operation | 95Figure 7.1 The Event Management process Event Event Notification Generated Event Detected Event Filtered Informational Significance? Exception Warning Event Correlation Trigger Incident/ Event Logged Auto Response Alert Problem/ Incident Change? Change Problem Human Incident Problem Change Intervention Management Management Management Review Actions No Effective? Yes Close Event End
96. 96 | Service Operation 7.2.1 Value to business Incidents can also be reported and/or logged by technical Event Management’s value to the business is generally staff (if, for example, they notice something untoward with indirect; however it is possible to determine the basis for a hardware or network component they may report or log its value as follows: an incident and refer it to the Service Desk). Event Management provides mechanisms for early 7.3.1 Value to business detection of incidents. In many cases it is possible for Incident Management is highly visible to the business, and the incident to be detected and assigned to the it is therefore easier to demonstrate its value than most appropriate group for action before any actual service areas in Service Operation. For this reason, Incident outage occurs Management is often one of the first processes to be Event Management makes it possible for some types of implemented in service management projects. The added automated activity to be monitored by exception – benefit of doing this is that Incident Management can be thus removing the need for expensive and resource- used to highlight other areas that need attention – intensive real-time monitoring, while reducing thereby providing a justification for expenditure on downtime implementing other processes. Incident Management’s When integrated into other service management value to the business includes: processes (such as, for example, Availability or Capacity Management), Event Management can signal status The ability to detect and resolve Incidents which changes or exceptions that allow the appropriate results in lower downtime to the business, which in person or team to perform early response, thus turn means higher availability of the service. This improving the performance of the process. This, in means that the business is able to exploit the turn, will allow the business to benefit from more functionality of the service as designed effective and more efficient Service Management The ability to align IT activity to real-time business overall priorities. This is because Incident Management Event Management provides a basis for automated includes the capability to identify business priorities operations, thus increasing efficiencies and allowing and dynamically allocate resources as necessary expensive human resources to be used for more The ability to identify potential improvements to innovative work, such as designing new or improved services. This happens as a result of understanding functionality or defining new ways in which the what constitutes an Incident and also from being in business can exploit technology for increased contact with the activities of business operational staff competitive advantage. The Service Desk can, during its handling of Incidents, identify additional service or training requirements 7.3 INCIDENT MANAGEMENT found in IT or the business. Incident Management includes any event which disrupts, 7.3.2 Incident models or which could disrupt, a service. This includes events Many incidents are not new – they involve dealing with which are communicated directly by users, either through something that has happened before and may well the Service Desk or through an interface from Event happen again. For this reason, many organizations will Management to Incident Management tools.
97. Service Operation | 97find it helpful to pre-define standard Incident models – looking at Incident types/frequencies to establish trendsand apply them to appropriate Incidents when they occur. for use in Problem Management, Supplier Management and other ITSM activities.An Incident model is a way of pre-defining the steps thatshould be taken to handle a process (in this case a processfor dealing with a particular type of incident) in an agreed Incident prioritizationway. Support tools can then be used to manage the Prioritization can normally be determined by taking intorequired process. This will ensure that standard incidents account both the urgency of the Incident (how quickly theare handled in a pre-defined path and within pre-defined business needs a resolution) and the level of impact it istimescales. causing. An indication of impact is often (but not always) the number of users being affected. In some cases, andThe Incident model should include: very importantly, the loss of service to a single user can Steps that should be taken to handle the Incident have a major business impact. Chronological order these steps should be taken in, with any dependences or co-processing defined Initial diagnosis Responsibilities; who should do what If the incident has been routed via the Service Desk, the Timescales and thresholds for completion of the Service Desk Analyst must carry out initial diagnosis, actions typically while the user is still on the telephone – if the Escalation procedures; who should be contacted and call is raised in this way – to try to discover the full when symptoms of the Incident and to determine exactly what Any necessary evidence-preservation activities has gone wrong and how to correct it. It is at this stage (particularly relevant for security- and capacity-related that diagnostic scripts and known error information can be incidents). most valuable in allowing earlier and accurate diagnosis.The models should be input to the Incident-handling Incident escalationsupport tools in use and the tools should then automate Functional escalation – As soon as it becomes clear thatthe handling, management and escalation of the process. the Service Desk is unable to resolve the incident itself (orThe Incident Management process is shown in Figure 7.2. when target times for first-point resolution have been exceeded – whichever comes first!) the incident must beIncident logging immediately escalated for further support.All incidents must be fully logged and date/time stamped, Hierarchic escalation – If incidents are of a serious natureregardless of whether they are raised through a Service (for example Priority 1 incidents) the appropriate ITDesk telephone call or whether automatically detected via managers must be notified, for informational purposes atan event alert. least. Hierarchic escalation is also used if the ‘Investigation and Diagnosis’ and ‘Resolution and Recovery’ steps areIncident categorization taking too long or proving too difficult. HierarchicPart of the initial logging must be to allocate suitable escalation should continue up the management chain soIncident categorization coding so that the exact type of that senior managers are aware and can be prepared andthe call is recorded. This will be important later when take any necessary action, such as allocating additional
98. 98 | Service Operation Figure 7.2 The Incident Management process flow From From User Email Event Web Phone Technical Mgmt Interface Call Staff Incident Identification Incident Logging Incident Categorization Yes Service Request? To Request Fulfilment No Incident Prioritization Major Incident Yes Procedure Major Incident? No Initial Diagnosis Functional Functional Yes Yes Escalation Escalation Needed? 2/3 Level Management Yes Hierarchic No Escalation Escalation Needed? No Investigation & Diagnosis Resolution and Recovery Incident Closure End
99. Service Operation | 99resources or involving suppliers/maintainers. Hierarchic Incident closureescalation is also used when there is contention about to The Service Desk should check that the incident is fullywhom the incident is allocated. resolved and that the users are satisfied and willing to agree the Incident can be closed. The Service Desk shouldInvestigation and diagnosis also check the following:This will include a variety of activities depending on the Closure categorization. Check and confirm that thetype of incident but should include: initial Incident categorization was correct or, where the Establishing exactly what has gone wrong or being categorization subsequently turned out to be incorrect, sought by the user update the record so that a correct closure Understanding the chronological order of events categorization is recorded for the Incident – seeking Confirming the full impact of the incident, including advice or guidance from the resolving group(s) as the number and range of users affected necessary Identifying any events that could have triggered the User satisfaction survey. Carry out a user satisfaction incident (e.g. a recent change, some user action?) call-back or e-mail survey for the agreed percentage of Knowledge searches looking for previous occurrences Incidents by searching previous Incident/Problem Records and/or Incident documentation. Chase any outstanding Known Error Databases or manufacturers’/suppliers’ details and ensure that the Incident Record is fully Error Logs or Knowledge Databases. documented so that a full historic record at a sufficient level of detail is completeResolution and recovery Ongoing or recurring problem? Determine (inWhen a potential resolution has been identified, this conjunction with resolver groups) whether it is likelyshould be applied and tested. The specific actions to be that the incident could recur and decide whether anyundertaken and the people who will be involved in taking preventive action is necessary to avoid this. Inthe recovery actions may vary, depending upon the nature conjunction with Problem Management, raise aof the fault – but could involve: Problem Record in all such cases so that preventive action is initiated Asking the user to undertake directed activities on their Formal closure. Formally close the Incident Record. own desktop or remote equipment The Service Desk implementing the resolution either centrally (say, rebooting a server) or remotely using 7.4 REQUEST FULFILMENT software to take control of the user’s desktop to The term ‘Service Request’ is used as a generic description diagnose and implement a resolution for many varying types of demands that are placed upon Specialist support groups being asked to implement the IT department by the users. Many of these are actually specific recovery actions (e.g. network support small changes – low risk, frequently occurring, low cost reconfiguring a router) etc. (e.g. a request to change a password, a request to A third-party supplier or maintainer being asked to install an additional software application onto a particular resolve the fault. workstation, a request to relocate some items of desktop equipment) or may be just a question requesting
100. 100 | Service Operation information – but their scale and frequent, low-risk nature 7.4.1 Request models means that they are better handled by a separate process, Some Service Requests will occur frequently and will rather than being allowed to congest and obstruct the require handling in a consistent manner in order to meet normal Incident and Change Management processes. agreed service levels. To assist this, many organizations will The process needed to fulfil a request will vary depending wish to create pre-defined Service Request models (which upon exactly what is being requested – but can usually be typically include some form of pre-approval by Change broken down into a set of activities that have to be Management). This is similar in concept to the idea of performed. Some organizations will be comfortable to let Incident models, but applied to Service Requests. the Service Requests be handled through their Incident Most requests will be triggered through either a user Management processes (and tools) – with Service Requests calling the Service Desk or a user completing some form being handled as a particular type of Incident (using a of self-help web-based input screen to make their request. high-level categorization system to identify those Incidents The latter will often involve a selection from a portfolio of that are in fact Service Requests). available request types. Note, however, that there is a significant difference here – The primary interfaces with Request Fulfilment include: an Incident is usually an unplanned event whereas a Service Request is usually something that can and should Service Desk/Incident Management: many Service be planned! Requests may come in via the Service Desk and may be initially handled through the Incident Management Therefore, in an organization where large numbers of process. Some organizations may choose that all Service Requests have to be handled, and where the Requests are handled via this route – but others may actions to be taken to fulfil those requests are very varied choose to have a separate process, for reasons already or specialized, it may be appropriate to handle Service discussed earlier in this chapter Requests as a completely separate work stream – and to A strong link is also needed between Request record and manage them as a separate record type. Fulfilment, Release, Asset and Configuration Many Service Requests will be frequently recurring, so a Management as some requests will be for the predefined process flow (a model) can be devised to deployment of new or upgraded components that can include the stages needed to fulfil the request, the be automatically deployed. In such cases the release individuals or support groups involved, target timescales can be pre-defined, built and tested but only deployed and escalation paths. Service Requests will usually be upon request by those who want the release. Upon satisfied by implementing a Standard Change (see the deployment, the CMS will have to be updated to Service Transition publication for further details on reflect the change. Where appropriate, software licence Standard Changes). The ownership of Service Requests checks/updates will also be necessary. resides with the Service Desk, which monitors, escalates, Where appropriate, it will be necessary to relate IT-related dispatches and often fulfils the user request. Service Requests to any Incidents or Problems that have initiated the need for the Request (as would be the case for any other type of change).
101. Service Operation | 101Request Fulfilment depends on the following critical 7.5.1 Scopesuccess factors: Problem Management includes the activities required to Agreement of what services will be standardized and diagnose the root cause of Incidents and to determine the who is authorized to request them. The cost of these resolution to those problems. It is also responsible for services must also be agreed. This may be done as part ensuring that the resolution is implemented through the of the SLM process. Any variances of the services must appropriate control procedures, especially Change also be defined Management and Release Management. Publication of the services to users as part of the Problem Management will also maintain information Service Catalogue. It is important that this part of the about Problems and the appropriate workarounds and Service Catalogue must be easily accessed, perhaps on resolutions, so that the organization is able to reduce the the intranet, and should be recognized as the first number and impact of Incidents over time. In this respect, source of information for users seeking access to a Problem Management has a strong interface with service Knowledge Management, and tools such as the Known Definition of a standard fulfilment procedure for each Error Database will be used for both. of the services being requested. This includes all Although Incident and Problem Management are separate procurement policies and the ability to generate processes, they are closely related and will typically use purchase orders and work orders the same tools, and may use similar categorization, impact A single point of contact which can be used to request and priority coding systems. This will ensure effective the service. This is often provided by the Service Desk communication when dealing with related Incidents and or through an intranet request, but could be through Problems. an automated request directly into the Request Fulfilment or procurement system Problem Management consists of two major processes: Self-service tools needed to provide a front-end Reactive Problem Management, which is generally interface to the users. It is essential that these integrate executed as part of Service Operation with the back-end fulfilment tools, often managed Proactive Problem Management which is initiated in through Incident or Change Management. Service Operation, but generally driven as part of Continual Service Improvement.7.5 PROBLEM MANAGEMENTITIL defines a ‘Problem’ as the unknown cause of one or 7.5.2 Processmore Incidents. Problem detectionProblem Management is the process responsible for It is likely that multiple ways of detecting problems willmanaging the lifecycle of all problems. The primary exist in all organizations. These will include:objectives of Problem Management are to preventProblems and resulting Incidents from happening, to Suspicion or detection of an unknown cause of one oreliminate recurring Incidents and to minimize the impact more Incidents by the Service Desk, resulting in aof Incidents that cannot be prevented. Problem Record being raised – the desk may have resolved the Incident but has not determined a
102. 102 | Service Operation Figure 7.3 The Problem Management process flow Proactive Event Incident Supplier or Service Desk Problem Management Management Contractor Management Problem Detection Problem Logging Categorization Prioritization CMS Investigation & Diagnosis Workaround? Create Known Known Error Record Error Database Change Yes Management Change Needed? No Resolution Closure Major Major Problem Problem? Review End
103. Service Operation | 103 definitive cause and suspects that it is likely to recur, so Problem categorization will raise a Problem Record to allow the underlying Problems must be categorized in the same way as cause to be resolved. Alternatively, it may be Incidents (and it is advisable to use the same coding immediately obvious from the outset that an Incident, system) so that the true nature of the Problem can be or Incidents, has been caused by a major problem, so a easily traced in the future and meaningful management Problem Record will be raised without delay information can be obtained. Analysis of an incident by a technical support group which reveals that an underlying problem exists, or is Problem prioritization likely to exist Problems must be prioritized in the same way and for the Automated detection of an infrastructure or application same reasons as Incidents – but the frequency and impact fault, using event/alert tools automatically to raise an of related Incidents must also be taken into account. Incident which may reveal the need for a Problem Record Problem prioritization should also take into account the A notification from a supplier or contractor that a severity of the Problem. Severity in this context refers to Problem exists that has to be resolved how serious the Problem is from an infrastructure perspective, for example: Analysis of Incidents as part of proactive Problem Management – resulting in the need to raise a Problem Can the system be recovered, or does it need to be Record so that the underlying fault can be investigated replaced? further. How much will it cost? How many people, with what skills, will be needed toProblem logging fix the problem?A cross-reference must be made to the incident(s) which How long will it take to fix the problem?initiated the Problem Record – and all relevant details How extensive is the problem (e.g. how many CIs aremust be copied from the Incident Record(s) to the affected)?Problem Record. It is difficult to be exact, as cases mayvary, but typically this will include details such as: Problem investigation and diagnosis User details An investigation should be conducted to try to diagnose Service details the root cause of the Problem – the speed and nature of Equipment details this investigation will vary depending upon the impact, Date/time initially logged severity and urgency of the Problem – but the appropriate level of resources and expertise should be applied to Priority and categorization details finding a resolution commensurate with the priority code Incident description allocated and the service target in place for that priority Details of all diagnostic or attempted recovery actions level. taken. The CMS must be used to help determine the level of impact and to assist in pinpointing and diagnosing the exact point of failure. The Known Error Database (KEDB)
104. 104 | Service Operation should also be accessed and Problem-matching so that if further Incidents or Problems arise, they can be techniques (such as keyword searches) should be used to identified and the service restored more quickly. see if the Problem has occurred before and, if so, to find However, in some cases it may be advantageous to raise a the resolution. Known Error Record even earlier in the overall process – It is often valuable to try to recreate the failure, so as to just for information purposes, for example – even though understand what has gone wrong, and then to try various the diagnosis may not be complete or a workaround ways of finding the most appropriate and cost-effective found, so it is inadvisable to set a concrete procedural resolution to the Problem. To do this effectively without point exactly when a Known Error Record must be raised. causing further disruption to the users, a test system will It should be done as soon as it becomes useful to do so! be necessary that mirrors the production environment. There are many Problem analysis, diagnosis and solving Problem resolution techniques available and much research has been done in Ideally, as soon as a solution has been found, it should be this area. The Service Operation publication details the applied to resolve the Problem – but in reality safeguards types and how to use them. may be needed to ensure that this does not cause further difficulties. If any change in functionality is required this Workarounds will require an RFC to be raised and approved before the resolution can be applied. If the Problem is very serious In some cases it may be possible to find a workaround to and an urgent fix is needed for business reasons, then an the Incidents caused by the Problem – a temporary way of Emergency RFC should be handled by the Emergency overcoming the difficulties. For example, a manual Change Advisory Board (ECAB) to facilitate this urgent amendment may be made to an input file to allow a action. Otherwise, the RFC should follow the established program to complete its run successfully and allow a Change Management process for that type of Change – billing process to complete satisfactorily, but it is and the resolution should be applied only when the important that work on a permanent resolution continues Change has been approved and scheduled for release. In where this is justified – in this example the reason for the the meantime, the KEDB should be used to help resolve file becoming corrupted in the first place must be found quickly any further occurrences of the Incidents/Problems. and corrected to prevent this happening again. In cases where a workaround is found, it is therefore Problem closure important that the Problem Record remains open, and When any change has been completed (and successfully details of the workaround are always documented within reviewed), and the resolution has been applied, the the Problem Record. Problem Record should be formally closed – as should any related Incident Records that are still open. A check should Raising a Known Error Record be performed at this time to ensure that the record As soon as the diagnosis is complete, and particularly contains a full historical description of all events – and if where a workaround has been found (even though it may not, the record should be updated. not yet be a permanent resolution), a Known Error Record The status of any related Known Error Records should be must be raised and placed in the Known Error Database – updated to show that the resolution has been applied.
105. Service Operation | 105Major Problem review 7.6 ACCESS MANAGEMENTAfter every major Problem (as determined by the Access Management is the process of granting authorizedorganization’s priority system), while memories are still users the right to use a service, while preventing access tofresh a review should be conducted to learn any lessons non-authorized users. It has also been referred to as ‘rightsfor the future. Specifically, the review should examine: management’ or ‘identity management’ in different Those things that were done correctly organizations. Those things that were done wrong Access Management is effectively the execution of both What could be done better in the future Availability and Information Security Management, in that How to prevent recurrence it enables the organization to manage the confidentiality, Whether there has been any third-party responsibility availability and integrity of the organization’s data and and whether follow-up actions are needed. intellectual property.Such reviews can be used as part of training and Access Management ensures that users are given the rightawareness activities for support staff – and any lessons to use a service, but it does not ensure that this access islearned should be documented in appropriate procedures, available at all agreed times – this is provided bywork instructions, diagnostic scripts or Known Error Availability Management.Records. The Problem Manager facilitates the session and Access Management is a process that is executed by alldocuments any agreed actions. Technical and Application Management functions and is usually not a separate function. However, there is likely toErrors detected in the development environment be a single control point of coordination, usually in ITIt is rare for any new applications, systems or software Operations Management or on the Service Desk.releases to be completely error-free. It is more likely that Access Management can be initiated by a Service Requestduring testing of such new applications, systems or through the Service Desk.releases, a prioritization system will be used to eradicatethe more serious faults, but it is possible that minor faults 7.6.1 Value to businessare not rectified – often because of the balance that has tobe made between delivering new functionality to the Controlled access to services ensures that thebusiness as quickly as possible and ensuring totally fault- organization is able to maintain more effectively thefree code or components. confidentiality of its information Employees have the right level of access to executeWhere a decision is made to release something into the their jobs effectivelyproduction environment that includes known deficiencies, There is less likelihood of errors being made in datathese should be logged as Known Errors in the KEDB, entry or in the use of a critical service by an unskilledtogether with details of workarounds or resolution user (e.g. production control systems)activities. There should be a formal step in the testing The ability to audit use of services and to trace thesign-off that ensures that this handover always takes place abuse of services(see Service Transition publication). The ability more easily to revoke access rights when needed – an important security consideration
106. 106 | Service Operation May be needed for regulatory compliance (e.g. SOX, Management will assess all the roles that a user plays as HIPAA, COBIT). well as the groups that they belong to and ensure that they provide rights to use all associated services. 7.6.2 Basic concepts Note: All data held on users will be subject to data While each user has an individual identity, and each IT protection legislation (this exists in most geographic service can be seen as an entity in its own right, it is often locations in some form or other) so should be handled helpful to group them together so that they can be and protected as part of the organization’s security managed more easily. Sometimes the terms ‘user profile’, procedures. ‘user template’ or ‘user role’ are used to describe this type of grouping. 7.6.3 Lifecycle activities Most organizations have a standard set of services for all Within Access Management the following lifecycle flow is individual users, regardless of their position or job recommended: (excluding customers – who do not have any visibility to Requesting access internal services and processes). These will include services Verification such as messaging, office automation, desktop support, telephony etc. New users are automatically provided with Providing rights rights to use these services. Monitoring identity status Logging and tracking access However, most users also have some specialized role that Removing or restricting rights. they perform. For example, in addition to the standard services, the user may also perform a marketing The Service Operation publication provides the detailed management role, which requires that they have access to workflow for each of these activities. some specialized marketing and financial modelling tools and data. 7.7 SERVICE OPERATION FUNCTIONS Some groups may have unique requirements – such as field or home workers who may have to dial in or use 7.7.1 Monitoring and control virtual private network (VPN) connections, with security The measurement and control of services is based on a implications that may have to be more tightly managed. continual cycle of monitoring, reporting and subsequent To make it easier for Access Management to provide the action. This cycle is discussed in detail in this section appropriate rights, it uses a catalogue of all the roles in the because it is fundamental to the delivery, support and organization and which services support each role. This improvement of services. catalogue of roles should be compiled and maintained by It is also important to note that, although this cycle takes Access Management in conjunction with HR and will often place during Service Operation, it provides a basis for be automated in the directory services tools. setting strategy, designing and testing services and In addition to playing different roles, users may also achieving meaningful improvement. It is also the basis for belong to different groups. For example, all contractors SLM measurement. Therefore, although monitoring is may be required to log their timesheets in a dedicated performed by Service Operation functions, it should not be time card system, which is not used by employees. Access seen as a purely operational matter. All phases of the
107. Service Operation | 107Service Lifecycle should ensure that measures and controls Closed-loop systems monitor an environment andare clearly defined, executed and acted upon. respond to changes in that environment. For example, in network load balancing a monitor will evaluate theFigure 7.4 Single monitor control loop traffic on a circuit. If network traffic exceeds a certain range, the control system will begin to route traffic Norm across a backup circuit. The monitor will continue to provide feedback to the control system which will continue to regulate the flow of network traffic between the two circuits. To help clarify the difference, solving a Capacity Control Compare Management problem through over-provisioning is open loop; a load-balancer that detects congestion/failure and redirects capacity is closed loop. Monitor Complex monitor control loop The monitor control loop in Figure 7.5 is a good basis for defining how Operations Management works, but within the context of ITSM the situation is far more complex. The figure illustrates a process consisting of three major activities. Each one has an input and an output, and the Input Activity Output output becomes an input for the next activity. In this diagram, each activity is controlled by its own Monitor Control Loop, using a set of norms for that specific activity. The process as a whole also has its own Monitor Control Loop, which spans all the activities andSingle monitor control loop ensures that all norms are appropriate and are beingA single activity and its output are measured using a pre- followed.defined norm, or standard, to determine whether it is One loop focuses purely on executing a defined standard,within an acceptable range of performance or quality and the second evaluates the performance of the process(Figure 7.4). If not, action is taken to rectify the situation or and also the standards whereby the process is executed.to restore normal performance. An example of this would be if the first set of feedbackTypically there are two types of monitor control loops: loops at the bottom of the diagram represented individual Open-loop systems are designed to perform a specific stations on an assembly line and the higher-level loop activity regardless of environmental conditions. For represented quality assurance. example, a backup can be initiated at a given time and The complex monitor control loop is a good frequency – and will run regardless of other conditions organizational learning tool (as defined by Chris Argyris (1976), Increasing Leadership Effectiveness, New York:
108. 108 | Service Operation Figure 7.5 Complex monitor control loop Norm Control Compare Monitor Norm Norm Norm Control Compare Control Compare Control Compare Monitor Monitor Monitor Activity Activity Activity Input Output Input Output Input Output Input Wiley). The first level of feedback at individual activity level IT services. And especially – who defines the norm? Based is concerned with monitoring and responding to data on what has been described so far, monitor control loops (single facts, codes or pieces of information). The second can be used to manage: level is concerned with monitoring and responding to Performance of activities in a process or procedure. information (a collection of a number of facts about which Each activity and its related output can potentially be a conclusion may be drawn). Refer to the Service measured to ensure that problems with the process are Transition publication for a full discussion on data, identified before the process as a whole is completed. information, knowledge and wisdom. For example, in Incident Management, the Service All of this is interesting theory, but does not explain how Desk monitors whether a technical team has accepted the monitor control loop concept can be used to operate an Incident in a specified time. If not, the Incident is
109. Service Operation | 109 escalated. This is done well before the target resolution support from vendor account managers. Service Design time for that Incident because the aim of escalating acts as the bridge between Service Strategy and Service that one activity is to ensure that the process as whole Operation and will typically involve representatives from is completed in time all groups. The activities and controls will generally be Effectiveness of a process or procedure as a whole. executed by IT staff (sometimes involving users) and In this case the ‘activity’ box represents the entire supported by IT managers and the vendors. Service process as a single entity. For example, Change Improvement spans all areas, but primarily represents the Management will measure the success of the process interests of the business and its users. by checking whether a change was implemented on Notice that the second level of monitoring in this complex time, to specification and within budget monitor control loop is performed by the CSI processes Performance of a device. For example, the ‘activity’ through Service Strategy and Service Design. These box could represent the response time of a server relationships are represented by the numbered arrows in under a given workload Figure 7.6: Performance of a series of devices. For example, the Arrow 1. In this case CSI has recognized that the end user response time of an application across the service will be improved by making a change to the network. Service Strategy. This could be the result of the business needing a change to the Service Portfolio, orITSM monitor control loop that the architecture does not deliver what wasEach activity in a service management process (or each expectedcomponent used to provide a service) is monitored as part Arrow 2. In this case the Service Level Requirementsof the Service Operation processes. The operational team need to be adjusted. It could be that the service is tooor department responsible for each activity or component expensive; or that the configuration of thewill apply the monitor control loop as defined in the infrastructure needs to be changed to enhanceprocess, and using the norms that were defined during performance; or because Operations Management isthe Service Design processes. The role of operational unable to maintain service quality in the currentmonitoring and control is to ensure that the process or architectureservice functions exactly as specified, which is why they Arrow 3. In this case the norms specified in Serviceare primarily concerned with maintaining the status quo. Design are not being adhered to. This could beThe norms and monitoring and control mechanisms are because they are not appropriate or executable, ordefined in Service Design, but they are based on the because of a lack of education or a lack ofstandards and architectures defined during Service communication. The norms and the lack of complianceStrategy. Any changes to the organization’s Service need to be investigated and action taken to rectify theStrategy, architecture, Service Portfolios or Service Level situation.Requirements will precipitate changes to what is There are many different types of monitoring tool andmonitored and how it is controlled. different situations in which each will be used. This sectionThe monitor control loops are placed within the context of focuses on some of the different types of monitoring thatthe organization. This implies that Service Strategy will can be performed and when they would be appropriate.primarily be executed by business and IT executives with
110. 110 | Service Operation Figure 7.6 ITSM monitor control loop Business Executives and Business Unit Managers Service Strategy 1 2 Continual Service 3 Improvement Service Design IT Management and Vendor Account Management Portfolios, Standards and Policies Service Transition Technical Architectures and Performance Standards Users Norm Norm Norm Control Compare Control Compare Control Compare Monitor Monitor Monitor Input Activity Output Input Activity Output Input Activity Output Internal and External Technical Staff and Experts Active versus passive monitoring: critical devices or systems; or as a diagnostic step when attempting to resolve an Incident or diagnose a Active monitoring refers to the ongoing interrogation Problem of a device or system to determine its status. This type of monitoring can be resource intensive and is usually Passive monitoring is more common and refers to reserved to proactively monitor the availability of generating and transmitting events to a listening device or monitoring agent. Passive monitoring
111. Service Operation | 111 depends on successful definition of events and Monitoring for CSI will therefore tend to focus on instrumentation of the system being monitored (see detecting exceptions and resolutions. For example, CSI is section 4.1 of the Service Operation publication). not as interested in whether an Incident was resolved, but whether it was resolved within the agreed time andReactive versus proactive monitoring: whether future Incidents can be prevented. Reactive monitoring is designed to request or trigger CSI is not only interested in exceptions, though. If an SLA action following a certain type of event or failure. For is consistently met over time, CSI will also be interested in example, server performance degradation may trigger determining whether that level of performance can be a reboot, or a system failure will generate an Incident. sustained at a lower cost or whether it needs to be Reactive monitoring is not only used for exceptions. It upgraded to an even better level of performance. CSI may can also be used as part of normal operations therefore also need access to regular performance reports. procedures, for example a batch job completes successfully, which prompts the scheduling system to However, since CSI is unlikely to need, or be able to cope submit the next batch job with, the vast quantities of data that are produced by all Proactive monitoring is used to detect patterns of monitoring activity, they will most likely focus on a events which indicate that a system or service may be specific subset of monitoring at any given time. This could about to fail. Proactive monitoring is generally used in be determined by input from the business or more mature environments where these patterns have improvements to technology. been detected previously, often several times. Proactive This has two main implications: monitoring tools are therefore a means of automating the experience of seasoned IT staff and are often created Monitoring for CSI will change over time. They may be through the Proactive Problem Management process interested in monitoring the e-mail service one quarter (see Continual Service Improvement publication). and then move on to look at HR systems in the next quarterOperational monitoring and Continual Service This means that Service Operation and CSI need toImprovement build a process which will help them to agree on what areas need to be monitored and for what purpose.This section has focused on operational monitoring andreporting, but monitoring also forms the starting point for 7.7.2 Service DeskContinual Service Improvement (CSI). This is covered in theContinual Service Improvement publication, but key A Service Desk is a functional unit made up of a dedicateddifferences are outlined here. number of staff responsible for dealing with a variety of service events, often made via telephone calls, webQuality is the key objective of monitoring for CSI. interface or automatically reported infrastructure events.Monitoring will therefore focus on the effectiveness of aservice, process, tool, organization or CI. The emphasis is The Service Desk is a vitally important part of annot on assuring real-time service performance; rather it is organization’s IT department and should be the singleon identifying where improvements can be made to the point of contact for IT users on a day-by-day basis – andexisting level of service, or IT performance. will handle all Incidents and Service Requests, usually using specialist software tools to log and manage all such events.
112. 112 | Service Operation The value of an effective Service Desk should not be The following roles are needed for the Service Desk. underrated – a good Service Desk can often compensate for deficiencies elsewhere in the IT organization; but a Service Desk manager poor Service Desk (or the lack of a Service Desk) can give In larger organizations where the Service Desk is of a a poor impression of an otherwise very effective IT significant size, a Service Desk manager role may be organization! justified with the Service Desk supervisor(s) reporting to It is therefore very important that the correct calibre of them. In such cases this role may take responsibility for staff are used on the Service Desk and that IT managers some of the activities listed above and may additionally do their best to make the Service Desk an attractive place perform the following activities: to work in order to improve staff retention. Manage the overall desk activities, including the The primary aim of the Service Desk is to restore ‘normal supervisors service’ to the users as quickly as possible. In this context Act as a further escalation point for the supervisor(s) ‘restoration of service’ is meant in the widest possible Take on a wider customer-services role sense. While this could involve fixing a technical fault, it Report to senior managers on any issue that could could equally involve fulfilling a Service Request or significantly impact the business answering a query – anything that is needed to allow the Attend Change Advisory Board meetings users to return to working satisfactorily. Take overall responsibility for Incident and Service Specific responsibilities will include: Request handling on the Service Desk. This could also be expanded to any other activity taken on by the Logging all relevant Incident and Service Request Service Desk – e.g. monitoring certain classes of event. details, allocating categorization and prioritization codes Note: In all cases, clearly defined job descriptions should Providing first-line investigation and diagnosis be drafted and agreed so that specific responsibilities are Resolving those Incidents and Service Requests they known. are able to Escalating Incidents and Service Requests that they Service Desk supervisor cannot resolve within agreed timescales In very small Service Desks it is possible that the senior Keeping users informed of progress Service Desk analyst will also act as the supervisor – but in Closing all resolved incidents, requests and other calls larger desks it is likely that a dedicated Service Desk supervisor role will be needed. Where shift hours dictate it, Conducting customer/user satisfaction call- there may be two or more post-holders who fulfil the role, backs/surveys as agreed usually on an overlapping basis. The supervisor’s role is Communication with users – keeping them informed likely to include: of Incident progress, notifying them of impending changes or agreed outages etc. Ensuring that staffing and skill levels are maintained Updating the CMS under the direction and approval of throughout operational hours by managing shift Configuration Management if so agreed. staffing schedules etc. Undertaking HR activities as needed
113. Service Operation | 113 Acting as an escalation point where difficult or Metrics should be established so that performance of the controversial calls are received Service Desk can be evaluated at regular intervals. This is Production of statistics and management reports important to assess the health, maturity, efficiency, Representing the Service Desk at meetings effectiveness and any opportunities to improve Service Arranging staff training and awareness sessions Desk operations. Liaising with senior management Metrics for Service Desk performance must be realistic and Liaising with Change Management carefully chosen. It is common to select those metrics that Performing briefings to Service Desk staff on changes are easily available and that may seem to be a possible or deployments that may affect volumes at the Service indication of performance; however, this can be Desk misleading. For example, the total number of calls Assisting analysts in providing first-line support when received by the Service Desk is not in itself an indication workloads are high, or where additional experience is of either good or bad performance and may in fact be required. caused by events completely outside the control of the Service Desk – for example a particularly busy period forService Desk analysts the organization, or the release of a new version of a major corporate system.The primary Service Desk analyst role is that of providingfirst-level support through taking calls and handling the An increase in the number of calls to the Service Desk canresulting Incidents or Service Requests using the Incident indicate less reliable services over that period of time –Reporting and Request Fulfilment processes, in line with but may also indicate increased user confidence in athe objectives described earlier. Service Desk that is maturing, resulting in a higher likelihood that users will seek assistance rather than try toSuper users cope alone. For this type of metric to be reliable forSuper users are discussed in detail in the section on reaching either conclusion, further comparison of previousService Desk staffing in paragraph 6.2.4 of the Service periods for any Service Desk improvements implementedOperation publication. In summary, this role will consist of since the last measurement baseline, or service reliabilitybusiness users who act as liaison points with IT in general Changes, Problems etc. to isolate the true cause for theand the Service Desk in particular. The role of the Super increase is needed.User can be summarized as follows: Further analysis and more detailed metrics are therefore To facilitate communication between IT and the needed and must be examined over a period of time. business at an operational level These will include the call-handling statistics previously mentioned under telephony, and additionally: To reinforce expectations of users regarding what Service Levels have been agreed The first-line resolution rate: the percentage of calls Staff training for users in their area resolved at first line, without the need for escalation to Providing support for minor incidents or simple other support groups. This is the figure often quoted request fulfilment by organizations as the primary measure of the Service Involvement with new releases and rollouts.
114. 114 | Service Operation Desk’s performance – and used for comparison Service Transition and refined in Continual Service purposes with the performance of other Service Desks Improvement (see other ITIL publications in this series). – but care is needed when making any comparisons Average time to resolve an Incident (when resolved at Technical Management organization first line) Technical Management is not normally provided by a Average time to escalate an Incident (where first-line single department or group. One or more technical resolution is not possible) support teams or departments will be needed to provide Average Service Desk cost of handling an Incident Technical Management and support for the IT Percentage of customer or user updates conducted infrastructure. In all but the smallest organizations, where within target times, as defined in SLA targets a single combined team or department may suffice, Average time to review and close a resolved call separate teams or departments will be needed for each type of infrastructure being used. The number of calls broken down by time of day and day of week, combined with the average call-time IT Operations Management consists of a number of metric, which is critical in determining the number of technological areas. Each of these requires a specific set of staff required. skills to manage and operate it. Some skill sets are related and can be performed by generalists, whereas others are 7.7.3 Technical Management specific to a component, system or platform. Technical Management refers to the groups, departments The primary criterion of the Technical Management or teams that provide technical expertise and overall organizational structure is that of specialization or division management of the IT Infrastructure. of labour. The principle is that people are grouped Technical Management plays a dual role: according to their technical skill sets, and that these skill sets are determined by the technology that needs to be It is the custodian of technical knowledge and managed. expertise related to managing the IT infrastructure. In this role, Technical Management ensures that the This list provides some examples of typical Technical knowledge required to design, test, manage and Management teams or departments: improve IT services is identified, developed and refined Mainframe team or department – if one or more It provides the actual resources to support the ITSM mainframe types are still being used by the Lifecycle. In this role Technical Management ensures organization that resources are effectively trained and deployed to Server team or department – often split again by design, build, transition, operate and improve the technology types (e.g. Unix server, Wintel server) technology required to deliver and support IT services. Storage team or department, responsible for the By performing these two roles, Technical Management is management of all data storage devices and media able to ensure that the organization has access to the Network support team or department, looking after the right type and level of human resources to manage organization’s internal WANs/LANs and managing any technology and, thus, to meet business objectives. external network suppliers Defining the requirements for these roles starts in Service Desktop team or department, responsible for all Strategy and is expanded in Service Design, validated in installed desktop equipment
115. Service Operation | 115 Database team or department, responsible for the Perform line-management for all team or department creation, maintenance and support of the members. organization’s databases Middleware team or department, responsible for the Technical analysts/architects integration, testing and maintenance of all middleware This term refers to any staff member in Technical in use in the organization Management who performs the activities listed in Directory services team or department, responsible for paragraph 7.7.3, excluding the daily operational actions, maintaining access and rights to service elements in which are performed by operators in either Technical or IT the infrastructure Operations Management. Based on this list of generic Internet or web team or department, responsible for activities, the role of technical analysts and architects managing the availability and security of access to includes: servers and content by external customers, users and Working with users, sponsors, Application Management partners and all other stakeholders to determine their evolving Messaging team or department, responsible for e-mail needs services Working with Application Management and other areas IP-based telephony team or department (e.g. VoIP). in Technical Management to determine the highest level of system requirements needed to meet the7.7.4 Technical Management roles requirements within budget and technologyThe following roles are needed in the Technical constraintsManagement areas. Defining and maintaining knowledge about how systems are related and ensuring that dependenciesTechnical managers/team-leaders are understood and managed accordinglyA technical manager or team-leader (depending upon the Performing cost-benefit analyses to determine thesize and/or importance of the team and the organization’s most appropriate means to meet the statedstructure and culture) may be needed for each of the requirementstechnical teams or departments. The role will: Developing operational models that will ensure Take overall responsibility for leadership, control and optimal use of resources and the appropriate level of decision-making for the technical team or department performance Provide technical knowledge and leadership in the Ensuring that the infrastructure is configured to be specific technical areas covered by the team or effectively managed given the organization’s department technology architecture, available skills and tools Ensure necessary technical training, awareness and Ensuring the consistent and reliable performance of experience levels are maintained within the team or the infrastructure to deliver the required level of service department to the business Report to senior management on all technical issues Defining all tasks required to manage the infrastructure relevant to their area of responsibility and ensuring that these tasks are performed appropriately
116. 116 | Service Operation Input into the design of configuration data required to The value generated must exceed the cost of the manage and track the application effectively. investment and all other organizational overheads (such as management and marketing costs) if the business is to succeed. 7.8 IT OPERATIONS MANAGEMENT In a similar way, IT Operations Management can be In business, the term ‘Operations Management’ is used to defined as the function responsible for the ongoing mean the department, group or team of people management and maintenance of an organization’s IT responsible for performing the organization’s day-to-day infrastructure to ensure delivery of the agreed level of IT operational activities – such as running the production line services to the business. in a manufacturing environment or managing the distribution centres and fleet movements within a logistics IT Operations can be defined as the set of activities organization. involved in the day-to-day running of the IT infrastructure for the purpose of delivering IT services at agreed levels to Operations Management generally has the following meet stated business objectives. characteristics: There is activity to ensure that a device, system or 7.8.1 IT Operations Management role process is actually running or working (as opposed to The role of Operations Management is to execute the strategy or planning) ongoing activities and procedures required to manage and This is where plans are turned into actions maintain the IT infrastructure so as to deliver and support The focus is on daily or shorter-term activities, IT services at the agreed levels. These are summarized although it should be noted that these activities will here for completeness: generally be performed and repeated over a relatively Operations control, which oversees the execution and long period (as opposed to one-off project type monitoring of the operational activities and events in activities) the IT infrastructure. This can be done with the These activities are executed by specialized technical assistance of an operations bridge or network staff, who often have to undergo technical training to operations centre. In addition to executing routine learn how to perform each activity tasks from all technical areas, Operations Control also There is a focus on building repeatable, consistent performs the following specific tasks: actions that – if repeated frequently enough at the Console management, which refers to defining right level of quality – will ensure the success of the central observation and monitoring capability and operation then using those consoles to exercise monitoring This is where the actual value of the organization is and control activities delivered and measured Job scheduling, or the management of routine There is a dependency on investment in equipment or batch jobs or scripts human resources or both Backup and restore on behalf of all Technical and Application Management teams and departments and often on behalf of users
117. Service Operation | 117 Print and output management for the collation Application Management high-level role and distribution of all centralized printing or Application Management is to applications what Technical electronic output Management is to the IT infrastructure. Application Performance of maintenance activities on behalf Management plays a role in all applications, whether of Technical or Application Management teams or purchased or developed in-house. One of the key departments decisions that they contribute to is the decision of Facilities management, which refers to the whether to buy an application or build it (this is discussed management of the physical IT environment, typically in detail in the Service Design publication). Once that a data centre or computer rooms and recovery sites decision is made, Application Management will play a together with all the power and cooling equipment. dual role: Facilities Management also includes the coordination of large-scale consolidation projects, e.g. data centre It is the custodian of technical knowledge and consolidation or server consolidation projects. In some expertise related to managing applications. In this role cases the management of a data centre is outsourced, Application Management, working together with in which case Facilities Management refers to the Technical Management, ensures that the knowledge management of the outsourcing contract. required to design, test, manage and improve IT services is identified, developed and refinedThe objectives of IT Operations Management include: It provides the actual resources to support the ITSM Maintenance of the status quo to achieve stability of Lifecycle. In this role, Application Management ensures the organization’s day-to-day processes and activities that resources are effectively trained and deployed to Regular scrutiny and improvements to achieve design, build, transition, operate and improve the improved service at reduced costs, while maintaining technology required to deliver and support IT services. stability By performing these two roles, Application Management is Swift application of operational skills to diagnose and able to ensure that the organization has access to the resolve any IT operations failures that occur. right type and level of human resources to manage applications and thus to meet business objectives. This7.9 APPLICATION MANAGEMENT starts in Service Strategy and is expanded in Service Design, tested in Service Transition and refined inApplication Management is responsible for managing Continual Service Improvement (see other ITIL publicationsapplications throughout their lifecycle. The Application in this series).Management function is performed by any department,group or team involved in managing and supporting Part of this role is to ensure a balance between the skilloperational applications. Application Management also level and the cost of these resources.plays an important role in the design, testing and In additional to these two high-level roles, Applicationimprovement of applications that form part of IT services. Management also performs the following two specific roles:As such, it may be involved in development projects, but Providing guidance to IT Operations about how best tois not usually the same as the applications development carry out the ongoing operational management ofteams. applications. This role is partly carried out during the
118. 118 | Service Operation Service Design process, but it is also a part of everyday phase, is expanded in detail in Service Design and is communication with IT Operations Management as executed in Service Operation. Ongoing assessment they seek to achieve stability and optimum and updating of these skills are done during Continual performance Service Improvement The integration of the Application Management Lifecycle Initiating training programmes to develop and refine into the ITSM Lifecycle. This is discussed below. the skills in the appropriate Application Management resources and maintaining training records for these The objectives, activities and structures that enable resources Application Management to play these roles effectively are discussed below. Recruiting or contracting resources with skills that cannot be developed internally, or where there are Application Management objectives insufficient people to perform the required Application Management activities The objectives of Application Management are to support Design and delivery of end-user training. Training may the organization’s business processes by helping to be developed and delivered by either the Application identify functional and manageability requirements for Development or Application Management groups, or application software, and then to assist in the design and by a third party, but Application Management is deployment of those applications and the ongoing responsible for ensuring that training is conducted as support and improvement of those applications. appropriate These objectives are achieved through: Insourcing for specific activities where the required Applications that are well designed, resilient and cost- skills are not available internally or in the open market, effective or where it is more cost-efficient to do so Ensuring that the required functionality is available to Definition of standards used in the design of new achieve the required business outcome architectures and participation in the definition of The organization of adequate technical skills to application architectures during the Service Strategy maintain operational applications in optimum processes condition Research and development of solutions that can help Swift use of technical skills to speedily diagnose and expand the Service Portfolio or which can be used to resolve any technical failures that do occur. simplify or automate IT Operations, reduce costs or increase levels of IT service Application Management generic activities Involvement in the design and building of new services. All Application Management teams or While most Application Management teams or departments will contribute to the design of the departments are dedicated to specific applications or sets technical architecture and performance standards for IT of applications, there are a number of activities which they services. In addition they will also be responsible for have in common (see Figure 7.7). These include: specifying the operational activities required to Identifying the knowledge and expertise required to manage applications on an ongoing basis manage and operate applications in the delivery of IT services. This process starts during the Service Strategy
119. Service Operation | 119Involvement in projects, not only during the Service Application Management resources will be involved inDesign process, but also for Continual Service defining coding systems that are used in Incident andImprovement or operational projects, such as operating Problem Management (e.g. Incident Categories)system upgrades, server consolidation projects or Application Management resources are used to supportphysical moves Problem Management in validating and maintainingDesigning and performing tests for the functionality, the KEDB together with the Application Developmentperformance and manageability of IT services (bearing teamsin mind that testing should be controlled and Change Management relies on the technicalperformed by an independent tester – see Service knowledge and expertise to evaluate changes, andTransition publication) many changes will be built by ApplicationAvailability and Capacity Management are dependent Management teamson Application Management for contributing to the Successful Release Management is dependent ondesign of applications to meet the levels of service involvement from Application Management staff. Inrequired by the business. This means that modelling fact they are frequently the drivers of the Releaseand workload forecasting are often done together with Management process for their applicationsTechnical and Application Management resources Application Management will define, manage andAssistance in assessing risk, identifying critical service maintain attributes and relationships of application CIsand system dependencies and defining and in the CMSimplementing countermeasures Application Management is involved in the ContinualManaging vendors. Many Application Management Service Improvement processes, particularly indepartments or groups are the only ones who know identifying opportunities for improvement and then inexactly what is required of a vendor and how to helping to evaluate alternative solutionsmeasure and manage them. For this reason, many Application Management ensures that all system andorganizations rely on Application Management to operating documentation is up to date and properlymanage contracts with vendors of specific applications. utilized. This includes ensuring that all design,If this is the case it is important to ensure that these management and user manuals are up to date andrelationships are managed as part of the SLM process complete and that Application Management staff andInvolvement in definition of Event Management users are familiar with their contentsstandards and especially in the instrumentation of Collaboration with Technical Management onapplications for the generation of meaningful events performing training needs analysis and maintainingApplication Management as a function provides the skills inventoriesresources that execute the Problem Management Assisting IT Financial Management to identify the costprocess. It is their technical expertise and knowledge of the ongoing management of applicationsthat is used to diagnose and resolve Problems. It is also Involvement in defining the operational activitiestheir relationship with the vendors that is used to performed as part of IT Operations Management. Manyescalate and follow up with vendor support teams or Application Management departments, groups ordepartments teams also perform the operational activities as part of an organization’s IT Operations Management function
120. 120 | Service Operation Figure 7.7 Role of Application Management in the application lifecycle Requirements Optimize Design IT Service Management Strategy, Design, Transition and Improvement Build Operate and Test Deploy Application Development Application Management Input into, and maintenance of, software configuration 7.9.1 Application Management roles policies Together with software development teams, the Applications managers/team-leaders definition and maintenance of documentation related An applications manager or team-leader should be to applications. These will include user manuals, considered for each of the applications teams or administration and management manuals, as well as departments. The role will: any standard operating procedures (SOPs) required to Take overall responsibility for leadership, control and manage operational aspects of the application. decision-making for the applications team or department Provide technical knowledge and leadership in the specific applications support activities covered by the team or department
121. Service Operation | 121 Ensure necessary technical training, awareness and Generating a set of acceptance test requirements, experience levels are maintained within the team or together with the designers, test engineers and the department relevant to the applications being user, which determine that all of the high-level supported and processes being used requirements have been met, in both functionality and Involve ongoing communication with users and manageability customers regarding application performance and Input into the design of configuration data required to evolving requirements of the business manage and track the application effectively. Report to senior management on all issues relevant to the applications being supported 7.10 SERVICE OPERATION AND PROJECT Perform line-management for all team or department MANAGEMENT members. Because Service Operation is generally viewed as ‘businessApplications analyst/architect as usual’ and often focused on executing defined procedures in a standard way, there is a tendency not toApplication analysts and architects are responsible for use project management processes when they would inmatching requirements to application specifications. fact be appropriate. For example, major infrastructureSpecific activities include: upgrades, or the deployment of new or changed Working with users, sponsors and all other stakeholders procedures, are significant tasks where formal project to determine their evolving needs management can be used to improve control and manage Working with Technical Management to determine the costs/resources. highest level of system requirements needed to meet Using project management to manage these types of the requirements within budget and technology activity would have the following benefits: constraints Performing cost-benefit analyses to determine the The project benefits are clearly stated and agreed most appropriate means to meet the stated There is more visibility of what is being done and how requirement it is being managed, which makes it easier for other IT Developing operational models that will ensure groups and the business to quantify the contributions optimal use of resources and the appropriate level of made by operational teams performance This in turn makes it easier to obtain funding for Ensuring that applications are designed to be projects that have traditionally been difficult to cost effectively managed given the organization’s justify technology architecture, available skills and tools Greater consistency and improved quality Developing and maintaining standards for application Achievement of objectives results in higher credibility sizing, performance modelling etc. for operational groups.
122. 122 | Service Operation 7.11 ASSESSING AND MANAGING RISK IN 7.12 OPERATIONAL STAFF IN SERVICE SERVICE OPERATION DESIGN AND TRANSITION There will be a number of occasions where it is imperative All IT groups will be involved during Service Design and that risk assessment to Service Operation is quickly Service transition to ensure that new components or undertaken and acted upon. services are designed, tested and implemented to provide the correct levels of functionality, usability, availability, The most obvious area is in assessing the risk of potential capacity etc. changes or Known Errors (already covered elsewhere) but in addition Service Operation staff may need to be Additionally, Service Operation staff must be involved involved in assessing the risk and impact of: during the early stages of Service Design and Service Transition to ensure that when new services reach the live Failures, or potential failures – either reported by Event environment they are fit for purpose, from a Service Management or Incident/Problem Management, or Operation perspective, and are supportable in the future. warnings raised by manufacturers, suppliers or contractors In this context, ‘supportable’ means: New projects that will ultimately result in delivery into Capable of being supported from a technical and the live environment operational viewpoint from within existing or Environmental risk (encompassing IT Service pre-agreed additional resources and skills levels Continuity-type risks to the physical environment and Without adverse impact on other existing technical or locale as well as political, commercial or industrial- operational working practices, processes or schedules relations related risks) Without any unexpected operational costs or ongoing Suppliers, particularly where new suppliers are involved or escalating support expenditure or where key service components are under the Without any unexpected contractual or legal control of third parties complications Security risks – both theoretical or actual arising from No complex support paths between multiple support security related incidents or events departments of third-party organizations. New customers/services to be supported.
123. Continual Service Improvement 8
124. | 1258 Continual Service Improvement Requirements The business/customers Service Objectives Strategy Resource and from Requirements Policies Constraints Strategies Service Design SDPs Standards Solution Architectures Designs Service Transition Tested SKMS Transition solutions Plans Service Operational Operation services Continual Service Improvement Improvement actions and plansContinual Service Improvement (CSI) provides practical The maturity of the enabling IT processes required toguidance in evaluating and improving the quality of support business processes in a continual Serviceservices, overall maturity of the ITSM Service Lifecycle and Lifecycle model.its underlying processes, at three levels within theorganization: 8.1 PURPOSE OF CSI The overall health of ITSM as a discipline The primary purpose of CSI is to continually align and re- The continual alignment of the portfolio of IT services align IT services to the changing business needs by with the current and future business needs identifying and implementing improvements to IT services that support business processes. These improvement activities support the lifecycle approach through Service
125. 126 | Continual Service Improvement Strategy, Service Design, Service Transition and Service These activities do not happen automatically. They must Operation. In effect, CSI is about looking for ways to be owned within the IT organization which is capable of improve process effectiveness and efficiency as well as handling the responsibility and possesses the appropriate cost effectiveness. authority to make things happen. They must also be planned and scheduled on an ongoing basis. By default, ‘improvement’ becomes a process within IT with defined 8.2 CSI OBJECTIVES activities, inputs, outputs, roles and reporting. CSI must Review, analyse and make recommendations on ensure that ITSM processes are developed and deployed in improvement opportunities in each lifecycle phase: support of an end-to-end service management approach Service Strategy, Service Design, Service Transition and to business customers. It is essential to develop an Service Operation ongoing continual improvement strategy for each of the Review and analyse Service Level achievement results processes as well as the services. Identify and implement individual activities to improve As Figure 8.1 shows, there are many opportunities for CSI. IT service quality and improve the efficiency and The figure also illustrates a constant cycle of improvement. effectiveness of enabling ITSM processes The improvement process can be summarized in six steps: Improve cost effectiveness of delivering IT services without sacrificing customer satisfaction Embrace the vision by understanding the high-level business objectives. The vision should align the Ensure applicable quality management methods are business and IT strategies used to support continual improvement activities. Assess the current situation to obtain an accurate, The following activities support a continual process unbiased snapshot of where the organization is right improvement plan: now. This baseline assessment is an analysis of the Reviewing management information and trends to current position in terms of the business, organization, ensure that services are meeting agreed Service Levels people, process and technology Reviewing management information and trends to Understand and agree on the priorities for ensure that the output of the enabling ITSM processes improvement based on a deeper development of the are achieving the desired results principles defined in the vision. The full vision may be Periodically conducting maturity assessments against years away but this step provides specific goals and a the process activities and roles associated with the manageable timeframe process activities to demonstrate areas of improvement Detail the CSI plan to achieve higher quality service or, conversely, areas of concern provision by implementing ITSM processes Periodically conducting internal audits verifying Verify that measurements and metrics are in place to employee and process compliance ensure that milestones were achieved, process Reviewing existing deliverables for relevance compliance is high, and business objectives and priorities were met by the level of service Making ad hoc recommendations for approval Finally, the process should ensure that the momentum Conducting periodic customer satisfaction surveys for quality improvement is maintained by assuring that Conducting external and internal service reviews to changes become embedded in the organization. identify CSI opportunities.
126. Continual Service Improvement | 127Figure 8.1 Continual Service Improvement model Business vision, What is the vision? mission, goals and objectives Baseline Where are we now? assessments How do we keep Where do we want Measureable the momentum going? to be? targets Service & process How do we get there? improvement Measurements & Did we get there? metrics8.2.1 Perspectives on benefits Much of the angst and confusion surrounding IT processThere are four commonly used terms when discussing improvement initiatives can be traced to the misuse ofservice improvement outcomes: these terms. Below is the proper use: Improvements Improvements – Outcomes that when compared to the ‘before’ state, show a measurable increase in a Benefits desirable metric or decrease in an undesirable metric ROI (return on investment) Example: ABC Corp achieved a 15% reduction in VOI (value on investment). failed changes through implementation of a formal Change Management process Benefits – The gains achieved through realization of improvements, usually but not always expressed in monetary terms. Example: ABC Corp’s 15% reduction in failed changes has saved the company £395,000 in productivity and re-works costs in the first year
127. 128 | Continual Service Improvement ROI – The difference between the benefit (saving) There is additional focus on the quality of IT in terms achieved and the amount expended to achieve that of reliability, availability, stability, capacity, security and, benefit, expressed as a percentage. Logically, one especially, risk would like to spend a little to save a lot IT and IT governance is an integral component in Example: ABC Corp spent £200,000 to establish the corporate governance formal Change Management process that saved IT performance becomes even more visible – technical £395,000. The ROI at the end of the first year of outages and customer dissatisfaction increasingly operation was therefore £195,000 or 97.5% become boardroom issues VOI – The extra value created by establishment of IT organizations increasingly find themselves in a benefits that include non-monetary or long-term position where they have to not only realize but outcomes. ROI is a subcomponent of VOI manage business-enabling technology and services Example: ABC Corp’s establishment of a formal that deliver the capability and quality demanded by Change Management process (which reduced the the business number of failed changes) improved the ability of IT must demonstrate value for money ABC Corp to respond quickly to changing market IT within e-business is not only supporting the primary conditions and unexpected opportunities resulting business processes, but is the core of those processes. in an enhanced market position. In addition, it promoted collaboration between business units and 8.4 TECHNOLOGY DRIVERS the IT organization and freed up resources to work on other projects that otherwise might not have The rapid pace of technology developments, within which been completed. IT provides solutions, becomes a core component of almost every area of business operations. As a result, IT services must: 8.3 BUSINESS DRIVERS Understand business operations and advise about the Businesses are becoming increasingly aware of the short- and long-term opportunities (and limitations) importance of IT as a service provider to not only support of IT but also enable business operations. As a result the Be designed for agility and nimbleness to allow for business leaders of today ask much more pointed and unpredictability in business needs direct questions regarding the quality of IT services and Accommodate more technological change, with a the competency and efficiency of their provider. This reduced cycle time, for realizing change to match a higher level of scrutiny buttresses the expanding need for reduced window in the business cycle CSI, meaning that: Maintain or improve existing quality of services while IT does more than enable existing business operations; adding or removing technology components IT enables business change and is, therefore, an Ensure that quality of delivery and support matches integral component of the business change the business use of new technology programme Bring escalating costs under control.
128. Continual Service Improvement | 1298.5 SERVICE MEASUREMENT If a baseline is not initially established the first measurement efforts will become the baseline. That is whyCritical elements of a service measurement framework: it is essential to collect data at the outset, even if the Integrated into business planning integrity of the data is in question. It is better to have data Focused on business and IT goals and objectives to question than to have no data at all. Cost-effective Balanced in its approach on what is measured 8.5.2 Why do we measure? Able to withstand change. To validate – monitoring and measuring to validate previous decisionsPerformance measures that: To direct – monitoring and measuring to set direction Are accurate and reliable for activities in order to meet set targets. It is the most Are well defined, specific and clear prevalent reason for monitoring and measuring Are relevant to meeting the objectives To justify – monitoring and measuring to justify, with Do not create a negative behaviour factual evidence or proof, that a course of action is Lead to improvement opportunities. required To intervene – monitoring and measuring to identify aPerformance targets that: point of intervention including subsequent changes Are SMART. and corrective actions. The four basic reasons to monitor and measure lead toDefined roles and responsibilities three key questions: ‘Why are we monitoring and Who defines the measures and targets? measuring?’, ‘When do we stop?’ and ‘Is anyone using the Who monitors and measures? data?’ To answer these questions, it is important to identify Who gathers the data? which of the above reasons is driving the measurement Who processes and analyses the data? effort. Too often, we continue to measure long after the Who prepares the reports? need has passed. Every time you produce a report you should ask: ‘Do we still need this?’ Who presents the reports?8.5.1 Baselines 8.6 CONTINUAL SERVICE IMPROVEMENTAn important beginning point for highlighting PROCESSESimprovement is to establish baselines as markers or The Seven-step Improvement Process is illustrated instarting points for later comparison. Baselines are also Figure 8.2.used to establish an initial data point to determine if aservice or process needs to be improved. As a result, it is 8.6.1 Step 1 – Define what you shouldimportant that baselines are documented, recognized andaccepted throughout the organization. Baselines must be measureestablished at each level: strategic goals and objectives, Compile a list of what you should measure. This will oftentactical process maturity, and operational metrics and KPIs. be driven by business requirements. Don’t try to cover every single eventuality or possible metric in the world.
129. 130 | Continual Service Improvement Figure 8.2 Seven-step Improvement Process Identify • Vision 1. Define what you • Strategy should measure • Tactical Goals • Operational Goals 2. Define what you 7. Implement can measure corrective action Goals 3. Gather the data 6. Present and use the Who? How? When? information, assessment Integrity of data? summary, action plans, etc. 5. Analyse the data 4. Process the data Relations? Trends? Frequency? Format? According to plan? System? Accuracy? Targets met? Corrective action? Make it simple. The number of things you should measure Corporate, divisional and departmental goals and can grow quite rapidly. So too can the number of metrics objectives and measurements. Legislative requirements Identify and link the following items: Governance requirements Budget cycle Corporate vision, mission, goals and objectives Balanced Scorecard. IT vision, mission, goals and objectives Critical success factors 8.6.2 Step 2 – Define what you can measure Service level targets Every organization may find that they have limitations on Job description for IT staff. what can actually be measured. If you cannot measure Inputs: something then it should not appear in an SLA. Service Level Requirements and targets Compile a list of what each tool can currently measure Service Catalogue without any configuration or customization. Stay away Vision and mission statements from customizing the tools as much as possible; configuring them is acceptable.
130. Continual Service Improvement | 131Perform a gap analysis between the two lists. Report this performance. CSI may therefore also need access toinformation back to the business, the customers and IT regular performance reports.management. It is possible that new tools are required or However since CSI is unlikely to need, or be able to copethat configuration or customization is required to be able with, the vast quantities of data that are produced by allto measure what is required. monitoring activity, they will most likely focus on aInputs: specific subset of monitoring at any given time. This could be determined by input from the business or List of what you should measure improvements to technology. Process flows Procedures When a new service is being designed or an existing one Work instructions changed, this is a perfect opportunity to ensure that what CSI needs to monitor is designed into the service Technical and user manuals from existing tools requirements (see Service Design publication). Existing reports. This has two main implications:8.6.3 Step 3 – Gathering the data Monitoring for CSI will change over time. They may beGathering data requires having some form of monitoring interested in monitoring the e-mail service one quarter,in place. Monitoring could be executed using technology and then move on to look at HR systems in the nextsuch as application, system and component monitoring quartertools or could even be a manual process for certain tasks. This means that Service Operation and CSI need toQuality is the key objective of monitoring for Continual build a process which will help them to agree on whatService Improvement. Monitoring will therefore focus on areas need to be monitored and for what purpose.the effectiveness of a service, process, tool, organization or It is important to remember that there are three types ofConfiguration Item (CI). The emphasis is not on assuring metrics that an organization will need to collect toreal-time service performance, rather it is on identifying support CSI activities as well as other process activities.where improvements can be made to the existing level of The types of metrics are:service, or IT performance. Monitoring for CSI will thereforetend to focus on detecting exceptions and resolutions. For Technology metrics – these metrics are oftenexample, CSI is not as interested in whether an Incident associated with component and application-basedwas resolved, but whether it was resolved within the metrics such as performance, availability etc.agreed time, and whether future Incidents can be Process metrics – these metrics are captured in theprevented. form of CSFs, KPIs and activity metrics for the service management processes. These metrics can helpCSI is not only interested in exceptions, though. If a determine the overall health of a process. Four keyService Level Agreement is consistently met over time, CSI questions that KPIs can help answer are around quality,will also be interested in determining whether that level of performance, value and compliance in following theperformance can be sustained at a lower cost or whether process. CSI would use these metrics as input init needs to be upgraded to an even better level of identifying improvement opportunities for each process
131. 132 | Continual Service Improvement Service metrics – these metrics are the results of the Quality – How well are the processes working? Monitor end-to-end service. Component/technology metrics are the individual or key activities as they relate to the used to compute the service metrics. objectives of the end-to-end process As much as possible, you need to standardize the data Performance – How fast or slow? Monitor the process structure through policies and published standards. For efficiency such as throughput or cycle times example, how do you enter names in your tools – John Value – Is this making a difference? Monitor the Smith; Smith, John; or J. Smith? These can be the same or effectiveness and perceived value of the process to the different individuals. Having three different ways of stakeholders and the IT staff executing the process entering the same name would slow down trend analysis activities. and will severely impede any CSI initiative. Monitoring is often associated with automated monitoring Gathering data is defined as the act of monitoring and data of infrastructure components for performance such as collection. This activity needs to clearly define the following: availability or capacity, but monitoring should also be used for monitoring staff behaviour such as adherence to Who is responsible for monitoring and gathering the data? process activities, use of authorized tools as well as project How the data will be gathered? schedules and budgets. When and how often is the data gathered? Exceptions and alerts need to be considered during the Criteria to evaluate the integrity of the data monitoring activity as they can serve as early warning The answers will be different for every organization. indicators that services are breaking down. Sometimes the exceptions and alerts will come from tools, but they will Service monitoring allows weak areas to be identified, so often come from those who are using the service or that remedial action can be taken (if there is a justifiable service management processes. We don’t want to ignore business case), thus improving future service quality. these alerts. Service monitoring also can show where customer actions are causing the fault and thus lead to identifying where Inputs to the gather-the-data activity: working efficiency and/or training can be improved. New business requirements Service monitoring should also address both internal and Existing SLAs external suppliers since their performance must be Existing monitoring and data capture capability evaluated and managed as well. Availability and Capacity Plans Service management monitoring helps determine the Service Improvement Plans health and welfare of service management processes in Previous trend analysis reports the following manner: List of what you should measure Process compliance – Are the processes being List of what you can measure followed? Process compliance seeks to monitor the Gap analysis report compliance of the IT organization to the new or List of what to measure modified service management processes and also the Customer satisfaction surveys. use of the authorized service management tool that was implemented
132. Continual Service Improvement | 1338.6.4 Step 4 – Processing the data What format is required for the output? This is alsoOnce data is gathered, the next step is to process the data driven by how analysis is done and ultimately how theinto the required format. Report-generating technologies are information is usedtypically used at this stage as various amounts of data are What tools and systems can be used for processing thecondensed into information for use in the analysis activity. data?The data is also typically put into a format that provides an How do we evaluate the accuracy of the processedend-to-end perspective on the overall performance of a data?service. This activity begins the transformation of raw data There are two aspects to data gathering. One is automatedinto packaged information. Use the information to develop and the other is manual. While both are important andinsight into the performance of the service and/or processes. contribute greatly to the measuring process, accuracy is aProcess the data into information (i.e. create logical major differentiator between the two types. The accuracygroupings) which provides a better means to analyse the of the automated data gathering and processing is not thedata – the next activity step in CSI. issue here. The vast majority of CSI-related data will beThe output of logical groupings could be in spreadsheets, gathered by automated means. Human data gatheringreports generated directly from the service management and processing is the issue. It is important for staff totool suite, system monitoring and reporting tools, or properly document their compliance activities, to updatetelephony tools such as an automatic call distribution tool. logs and records. Common excuses are that people are too busy, that this is not important or that it is not theirProcessing the data is an important CSI activity that is often job. On-going communication about the benefits ofoverlooked. While monitoring and collecting data on a single performing administrative tasks is of utmost importance.infrastructure component is important, it is also important to Tying these administrative tasks to job performance is oneunderstand that components impact on the larger way to alleviate this issue.infrastructure and IT service. Knowing that a server was up99.99% of the time is one thing, knowing that no one could Inputs to the processing-the-data activity:access the server is another. An example of processing the Data collected through monitoringdata is taking the data from monitoring of the individual Reporting requirementscomponents such as the mainframe, applications, WAN, LAN, SLAsservers etc., and processing this into a structure of an end-to-end service from the customer’s perspective. OLAs Service CatalogueKey questions that need to be addressed in the processing List of metrics, KPI, CSF, objectives and goalsactivity are: Report frequency What is the frequency of processing the data? This Report template. could be hourly, daily, weekly or monthly. When introducing a new service or service management 8.6.5 Step 5 – Analysing the data process it is a good idea to monitor and process in Your organization’s Service Desk has a trend of reduced shorter intervals than longer intervals. How often call volumes consistently over the last four months. Even analysis and trend investigation activities take place though this is a trend, you need to ask yourself the will drive how often the data is processed
133. 134 | Continual Service Improvement question: ‘Is this a good trend or a bad trend?’ You don’t Is this bad? know if the call reduction is because you have reduced Is this expected? the number of recurring errors in the infrastructure by Is this in line with targets? good Problem Management activities or if the customers feel that the Service Desk doesn’t provide any value and Combining multiple data points on a graph may look nice they have started bypassing the Service Desk and going but the real question is, what does it actually mean. directly to second-level support groups. ‘A picture is worth a thousand words’ goes the saying. In analysing the data an accurate question would be, ‘Which Data analysis transforms the information into knowledge thousand words?’ To transform this data into knowledge, of the events that are affecting the organization. More skill compare the information from Step 3 against both the and experience is required to perform data analysis than requirements from Step 1 and what could realistically be data gathering and processing. Verification against goals measured from Step 2. and objectives is expected during this activity. This verification validates that objectives are being supported Be sure to also compare the clearly defined objectives and value is being added. It is not sufficient to simply against the measurable targets that were set in the Service produce graphs of various types but to document the Design, Transition and Operations lifecycle stages. observations and conclusions looking to answer the Confirmation needs to be sought that these objectives and following questions: the milestones were reached. If not, have improvement initiatives been implemented? If so, then the CSI activities Are there any clear trends? start again from the gathering data, processing data and Are they positive or negative trends? analysing data steps to identify if the desired improvement Are changes required? in service quality has been achieved. At the completion of Are we operating according to plan? each significant stage or milestone, a review should be Are we meeting targets? conducted to ensure the objectives have been met. It is Are corrective actions required? possible here to use the Post-Implementation Review (PIR) from the Change Management process. The PIR will Are there underlying structural problems? include a review of supporting documentation and the What is the cost of the service gap? general awareness amongst staff of the refined processes It is interesting to note the number of job titles for IT or service. A comparison is required of what has been professionals that contain the word ‘analyst’ and even achieved against the original goals. more surprising to discover that few of them actually During the analysis activity, but after the results are analyse anything. This step takes time. It requires compiled and analysis and trend evaluation have occurred, concentration, knowledge, skills, experience etc. One of it is recommended that internal meetings be held within the major assumptions is that the automated processing, IT to review the results and collectively identify reporting, monitoring tool has actually done the analysis. improvement opportunities. It is important to have these Too often people simply point at a trend and say ‘Look, internal meetings before you begin presenting and using numbers have gone up over the last quarter.’ However, the information which is the next activity of Continual key questions need to be asked, such as: Service Improvement. The result is that IT is a key player in Is this good?
134. Continual Service Improvement | 135determining how the results and any actions items are Consideration must be given to the skills required topresented to the business. analyse from both a technical viewpoint and from an interpretation viewpoint.This puts IT in a better position to formulate a plan ofpresenting the results and any action items to the business When analysing data, it is important to seek answers toand to senior IT management. Throughout this publication questions such as:the terms ‘service’ and ‘service management’ have been Are operations running according to plan? This couldused extensively. IT is too often focused on managing the be a project plan, financial plan, availability, capacityvarious systems used by the business, often (but or even IT Service Continuity Management planincorrectly) equating service and system. A service is Are targets defined in SLAs or the Service Catalogueactually made up of systems. Therefore if IT wants to be being met?perceived as a key player, then IT must move from asystems-based organization to a service-based Are there underlying structural problems that can beorganization. This transition will force the improvement of identified?communication between the different IT silos that exist in Are corrective actions required?many IT organizations. Are there any trends? If so then what are the trends showing? Are they positive trends or negative trends?Performing proper analysis on the data also places the What is leading to or causing the trends?business in a position to make strategic, tactical andoperational decisions about whether there is a need for Reviewing trends over a period of time is anotherservice improvement. Unfortunately, the analysis activity is important task. It is not good enough to see a snapshot ofoften not done. Whether it is due to a lack of resources a data point at a specific moment in time, but to look atwith the right skills and/or simply a lack of time is unclear. the data points over a period of time. How did we do thisWhat is clear is that without proper analysis, errors will month compared to last month, this quarter compared tocontinue to occur and mistakes will continue to be last quarter, this year compared to last year?repeated. There will be little improvement.Data analysis transforms the information into knowledge 8.6.6 Step 6 – Presenting and using theof the events that are affecting the organization. As an informationexample, a sub-activity of Capacity Management is The sixth step is to take our knowledge and present it,workload management. This can be viewed as analysing that is, turn it into wisdom by utilizing reports, monitors,the data to determine which customers use what resource, action plans, reviews, evaluations and opportunities.how they use the resource, when they use the resource Consider the target audience; make sure that you identifyand how this impacts the overall performance of the exceptions to the service, benefits that have beenresource. You will also be able to see if there is a trend on revealed, or can be expected. Data gathering occurs at thethe usage of the resource over a period of time. From an operational level of an organization. Format this data intoincremental improvement process this could lead to some knowledge that all levels can appreciate and gain insightfocus on demand management, or influencing the into their needs and expectations.behaviour of customers. This stage involves presenting the information in a format that is understandable, at the right level, provides value,
135. 136 | Continual Service Improvement notes exceptions to service, identifies benefits that were business benefits of a well-run IT support group. The revealed during the time period, and allows those starting point is a new perspective on goals, measures, receiving the information to make strategic, tactical and and reporting, and how IT actions affect business results. operational decisions. In other words, presenting the You will then be prepared to answer the question: ‘How information in the manner that makes it the most useful does IT help to generate value for your company?’ for the target audience. Although most reports tend to concentrate on areas where Creating reports and presenting information is an activity things are not going as well as hoped for, do not forget to that is done in most organizations to some extent or report on the good news as well. A report showing another; however it often is not done well. For many improvement trends is IT services’ best marketing vehicle. organizations this activity is simply taking the gathered It is vitally important that reports show whether CSI has raw data (often straight from the tool) and reporting this actually improved the overall service provision and if it has same data to everyone. There has been no processing and not, the actions taken to rectify the situation. analysis of the data. There are usually three distinct audiences: 8.6.7 Step 7 – Implementing corrective action The business – Their real need is to understand Use the knowledge gained to optimize, improve and whether IT delivered the service they promised at the correct services. Managers need to identify issues and levels they promised and if not, what corrective actions present solutions. Explain how the corrective actions to be are being implemented to improve the situation taken will improve the service. Senior (IT) management – This group is often focused on the results surrounding CSFs and KPIs such CSI identifies many opportunities for improvement as, customer satisfaction, actual vs. plan, costing and however organizations cannot afford to implement all of revenue targets. Information provided at this level them. Based on goals, objectives and types of service helps determine strategic and tactical improvements breaches, an organization needs to prioritize improvement on a larger scale. Senior (IT) management often wants activities. Improvement initiatives can also be externally this type of information provided in the form of a driven by regulatory requirements, changes in Balanced Scorecard or IT scorecard format to see the competition, or even political decisions. big picture at one glance After a decision to improve a service and/or service Internal IT – This group is often interested in KPIs and management process is made, then the Service Lifecycle activity metrics that help them plan, coordinate, continues. A new Service Strategy may be defined, Service schedule and identify incremental improvement Design builds the changes, Service Transition implements opportunities. the changes into production and then Service Operation Now more than ever, IT must invest the time to manages the day-to-day operations of the service and/or understand specific business goals and translate IT metrics service management processes. Keep in mind that CSI to reflect an impact against these goals. Businesses invest activities continue through each phase of the Service in tools and services that affect productivity, and support Lifecycle. should be one of those services. The major challenge, and Each Service Lifecycle phase requires resources to build or one that can be met, is to effectively communicate the modify the services and/or service management processes,
136. Continual Service Improvement | 137potential new technology or modifications to existing measured and processed into logical groupings as well astechnology, potential changes to KPIs and other metrics doing the actual processing of the data. Service Operationand possibly even new or modified OLAs/UCs to support would also be responsible for taking the component dataSLAs. Communication, training and documentation are and processing it in a format that will provide a betterrequired to transition a new/improved service, tool or end-to-end perspective of the service achievements.service management process into production. 8.6.9 Role of other processes in monitoring8.6.8 Monitoring and data collection and data collection throughout the Service LifecycleService Strategy is responsible for monitoring the progress Service Level Managementof strategies, standards, policies and architectural decisions SLM plays a key role in the data-gathering activity as SLMthat have been made and implemented. is responsible for not only defining business requirements but also IT’s capabilities to achieve them.Service Design monitors and gathers data associated withcreating and modifying (design efforts of) services and One of the first items in defining IT’s capabilities is toservice management processes. This part of the Service identify what monitoring and data collection activitiesLifecycle also measures against the effectiveness and are currently taking placeability to measure CSFs and KPIs that were defined SLM then needs to look at what is happening with thethrough gathering business requirements. Service Design monitoring data. Is the monitoring taking place only atalso defines what should be measured. This would include a component level and, if so, is anyone looking atmonitoring project schedules, progress to project multiple components to provide an end-to-end servicemilestones, and project results against goals and performance perspective?objectives. SLM should also identify who gets the data, whether any analysis takes place on the data before it isService Transition develops the monitoring procedures and presented, and if any trend evaluation is undertaken tocriteria to be used during and after implementation. understand the performance over a period of time. ThisService Transition monitors and gathers data on the actual information will be helpful in following CSI activitiesrelease into production of services and servicemanagement processes. It is the responsibility of Service Through the negotiation process with the business,Transition to ensure that the services and service SLM would define what to measure and which aspectsmanagement processes are embedded in a way that can to report. This would in turn drive the monitoring andbe managed and maintained according to the strategies data collection requirements. If there is no capability toand design efforts. Service Transition develops the monitor and/or collect data on an item then it shouldmonitoring procedures and criteria to be used during and not appear in the SLA. SLM should be a part of theafter implementation. review process to monitor results SLM is responsible for developing and gettingService Operation is responsible for the actual monitoring agreement on OLAs and UCs that require internal orof services in the production environment. Service external monitoring.Operation plays a large part in the processing activity.Service Operation provides input into what can be
137. 138 | Continual Service Improvement Availability and Capacity Management Security Management Provide significant input into existing monitoring and Security Management contributes to monitoring and data data collection capabilities, tool requirements to meet collection in the following manner: new data collection requirements and ensure the Defines security monitoring and data collection Availability and Capacity Plans are updated to reflect requirements new or modified monitoring and data collection Monitors, verifies and tracks the levels of security requirements according to the organizational security policies and Are accountable for the actual infrastructure guidelines monitoring and data collection activities that take Assists in determining effects of security measures on place. Therefore roles and responsibilities need to be data monitoring and collection from the perspectives defined and the roles filled with properly skilled and of confidentiality (accessible only to those who trained staff should), integrity (data is accurate and not corrupted Are accountable for ensuring tools are in place to or not corruptible) and availability (data is available gather data when needed). Are accountable for ensuring that the actual monitoring and data collection activities are Financial Management consistently performed. Financial Management is responsible for monitoring and collecting data associated with the actual expenditures vs. Incident Management and Service Desk budget and is able to provide input on questions such as: Incident Management can define monitoring Are costing or revenue targets on track? Financial requirements to support event and incident detection Management should also monitor the ongoing cost per through automation and also has the ability to service etc. automatically open Incident tickets and/or auto- escalate Incident tickets In addition Financial Management will provide the Event and Incident monitoring can identify abnormal necessary templates to assist CSI to create the budget and situations and conditions which helps with predicting expenditure reports for the various improvement initiatives and pre-empting situations and conditions thereby as well as providing the means to compute the ROI of the avoiding possible service and component failures improvements. Monitor response times, repair times, resolution times and Incident escalations 8.6.10 Metrics and measurement As a single point of contact it is important for the In general, a metric is a scale of measurement defined in Service Desk to monitor telephony items such as call terms of a standard, i.e. in terms of a well-defined unit. volumes, average speed of answer, call abandonment The quantification of an event through the process of rates etc., so that immediate action can be taken when measurement relies on the existence of an explicit or there is an increase in calls to the Service Desk. This implicit metric (see Table 8.1), which is the standard to would also apply to those Service Desks who provide which measurements are referenced. support via e-mail and via the web.
138. Continual Service Improvement | 139Table 8.1 Service metric examplesMeasure Metric Quality goal Lower limit Upper limitSchedule % variation against Within 7.5% of Not to be less than Not to exceed 7.5% of revised plan estimate 7.5% of estimate estimateEffort % variation against Within 10% of estimate Not to be less than Not to exceed 10% of revised plan 10% of estimate estimateCost % variation against Within 10% of estimate Not to be less than Not to exceed 10% of revised plan 10% of estimate estimateDefects % variation against Within 10% of estimate Not to be less than Not to exceed 10% of planned defect 10% of estimate estimateProductivity % variation against Within 10% of estimate Not to be less than Not to exceed 10% of productivity goal 10% of estimate estimateCustomer satisfaction Customer satisfaction Greater than 8.9 on the Not to be less than survey result range of 1 to 10 8.9 on the range of 1 to 10Metrics are a system of parameters or ways of quantitative Simply looking at some results and declaring a trend isassessment of a process that is to be measured, along dangerous. Figure 8.3 shows a trend that the Service Deskwith the processes to carry out such measurement. Metrics is opening fewer incident tickets over the last few months.define what is to be measured. Metrics are usually One could believe that this is because there are fewerspecialized by the subject area, in which case they are Incidents or perhaps it is because the customers are notvalid only within a certain domain and cannot be directly happy with the service that is being provided, so they gobenchmarked or interpreted outside it. Generic metrics, elsewhere for their support needs. Perhaps thehowever, can be aggregated across subject areas or organization has implemented a self-help knowledge basebusiness units of an enterprise. and some customers are now using this service instead of contacting the Service Desk. Some investigation is8.6.11 Interpreting metrics required to understand what is driving these metrics.When beginning to interpret the results it is important toknow the data elements that make up the results, thepurpose of producing the results and the expected normalranges of the results.
139. 140 | Continual Service Improvement Figure 8.3 Number of incident tickets opened over time 16,000 15,500 Number of incident tickets 15,000 14,500 opened 14,000 13,500 Number of incident 13,000 tickets 12,500 12,000 11,500 ry y ua ar ch ne nu ril br ay ar Ap Fe Ju Ja M M 8.7 SERVICE REPORTING It is not satisfactory simply to present reports which depict adherence (or otherwise) to SLAs, which in themselves are A significant amount of data is collated and monitored by prone to statistical ambiguity. IT needs to build an IT in the daily delivery of quality service to the business; actionable approach to reporting, i.e. this is what however, only a small subset is of real interest and happened, this is what we did, this is how we will ensure importance to the business. (Figure 8.4 shows the it doesn’t impact you again, and this is how we are process.) The majority of data and its meaning are more working to improve the delivery of IT services generally. suited to the internal management needs of IT. The business likes to see a historical representation of the past period’s performance that portrays their experience; however, it is more concerned with those historical events that continue to be a threat going forward, and how IT intend to militate against such threats.
140. Continual Service Improvement | 141Figure 8.4 Service reporting process The Business Define Reporting Policies and Rules Collate Service Translate and Apply Business Views Reporting Publish IT Liaison, Education and Communication
141. Complementary guidance 9
142. | 1459 Complementary guidance9.1 ITIL AND OTHER FRAMEWORKS, ISO 20000 is based on the ITIL service management PRACTICES AND STANDARDS processes.The IT industry has developed a number of frameworks, 9.1.3 ISO/IEC 15504method and standards to manage a growing number of Also known as SPICE – Software Process Improvement andneeds. Organizations can face uncertainty in Capability dEtermination – it provides a framework for theunderstanding which framework, method or standard of assessment of process capability. This framework can bepractice they need in order to excel at managing IT used by organizations involved in planning, managing,services. Some frameworks were developed to address monitoring, controlling and improving the acquisition,regulatory and legal compliance, others to streamline or supply, development, operation, evolution and support ofre-engineer practices and most have origins in financial products and services. It is also intended for use byand manufacturing industries. assessors in the performance of process assessment, andITIL and many of these frameworks have a solid harmony by organizations involved in the development of processand can co-exist within an organization to meet a range reference models, process assessment models or processof service management needs. assessment processes.Following are some of the more commonly knownframeworks and standards that have synergy with ITIL. 9.1.4 ISO/IEC 19770:2006 Developed to enable an organization to prove that it is9.1.1 COBIT performing software asset management (SAM) to aCOBIT® stands for Control OBjectives for Information and standard sufficient to satisfy corporate governancerelated Technology. Originally created in 1995 as an IS requirements and ensure effective support for IT serviceaudit framework, COBIT has matured to become an overall management overall. It is intended to align closely to, andIT management framework. COBIT processes and to support, ISO/IEC 20000. Good practice in SAM shouldprinciples are often used by IT and SOX auditors. COBIT is result in several benefits, and certifiable good practicegoverned by the IT Governance Institute. should allow management and other organizations to place reliance on the adequacy of these processes. The9.1.2 ISO/IEC 20000 expected benefits should be achieved with a high degree of confidence.ISO/IEC 20000:2005 promotes the adoption of anintegrated process approach to effectively deliver 9.1.5 Management of Riskmanaged services to meet business and customerrequirements. For an organization to function effectively Management of Risk (M_o_R®) provides an alternativeit has to identify and manage numerous linked activities. generic framework for the management of risk across allCoordinated integration and implementation of the service parts of an organization – strategic, programme, projectmanagement processes provides ongoing control, greater and operational. It incorporates all the activities requiredefficiency and opportunities for continual improvement. to identify and control the exposure to any type of risk,
143. 146 | Complementary guidance positive or negative, which may have an impact on the 9.1.7 CMMI achievement of your organization’s business objectives. CMMi (Capability Maturity Model Integrated) was created M_o_R provides a framework that is tried, tested and by SEI (Software Engineering Institute) at Carnegie Mellon effective to help you eliminate or manage the risks University in 1991. In the beginning CMM was a model for involved in reaching your goals. M_o_R adopts a demonstrating the maturity of software development systematic application of principles, approach and processes in the belief that more mature development processes to the task of identifying, assessing and then processes led to better software. The basic Software CMM planning and implementing risk responses. model has grown and been revised. CMM is now the de facto standard for measuring the maturity of any process. 9.1.6 Project management Organizations can be assessed against the CMM model PMBOK® (Project Management Body of Knowledge) is using SCAMPI (Standard CMMI Appraisal Method for owned and authored by the Project Management Institute Process Improvement). (PMI). 9.1.8 Six Sigma The Project Management Body of Knowledge is the sum of knowledge within the profession of project management. The fundamental objective of the Six Sigma methodology As with other professions such as law, medicine and is the implementation of a measurement-based strategy accounting, the body of knowledge rests with the that focuses on process improvement and variation practitioners and academics who apply and advance it. reduction through the application of Six Sigma The complete Project Management Body of Knowledge improvement projects. This is accomplished through the includes proven traditional practices that are widely use of two Six Sigma sub-methodologies: DMAIC and applied, as well as innovative practices that are emerging DMADV. The Six Sigma DMAIC process (define, measure, in the profession, including published and unpublished analyse, improve, control) is an improvement system for material. As a result, the Project Management Body of existing processes falling below specification and looking Knowledge is constantly evolving. (Introduction to PMBOK, for incremental improvement. The Six Sigma DMADV 2004) process (define, measure, analyse, design, verify) is an improvement system used to develop new processes or PRINCE2™ (PRoject IN Controlled Environments, v2) is a products at Six Sigma quality levels. It can also be structured project management method owned by the employed if a current process requires more than just OGC. Structured project management means managing incremental improvement. the project in a logical, organized way, following defined steps. A structured project management method is the written description of this logical, organized approach.
144. 10 The ITIL ServiceManagement Model
145. | 14910 The ITIL Service Management ModelThrough the previous chapters we have learned the basics as Availability and Capacity Management do not fitof the ITIL Service Lifecycle. This chapter helps to bring a squarely into a process profile, but are critical elements ofvisual perspective to what we have learned. The basic service management that function across the lifecycle andconcept of using Service Management Models to must be managed in a formal way.implement and manage services inherently offersnumerous perspectives. Depending on your organizational 10.1 MODEL ELEMENT TYPEScontext, your interpretation of these will have adaptivenuances. The ITIL Service Management Model is comprised of two element types: Service Lifecycle governance elements andThe ITIL Service Management Model has numerous levels Service Lifecycle operational elements (Figure 10.1).of granularity. For the purposes of learning the basics, thissection will take you through the basic constructs and Figure 10.1 Service Management Model element typeselements, and offer a look at how the ServiceManagement Model is applied to designing a service. The y tra tegITIL Service Lifecycle relies on processes to execute the eS vicactivities involved in service management. Ser vice SerThe elements within the Service Management Model will ual ment tin e Con prov le svary in depth, adaptation and interpretation among I m cyc t Life lemenvarious service organizations depending on circumstance, v ice e e Ser ancculture and structure. The Service Management Model is n ver Godesigned to be adaptive and organizations can customizethe design and use of ITIL model elements to meet theirunique needs. On its own, without any adaptation, theService Management Model is entirely complete andusable, but many organizations find that they can enhance n esigtheir service capabilities by incorporating their own best vic eD ion Ser nsitpractices into a hybrid structure. Care should be taken, Tra tion vice erahowever, when adapting the Service Management Model Ser Op vicenot to customize it to the point that service management Ser cyc le s ttechnologies in the consumer market are no longer able Life emen vice al elto support your requirements. Ser tion era OpAnother important concept within the ServiceManagement Model is that not all of the elements arepurely processes. While many elements fit the typical Service Lifecycle governance elements exert influencecharacteristics of a ‘process’, many do not. Elements such throughout the Service Lifecycle and gain feedback from
146. 150 | The ITIL Service Management Model Figure 10.2 Service Lifecycle governance and operational elements Service Lifecycle Governance Processes Service Lifecycle Operational Processes Continual Service Improvement Service Strategy Processes Service Design Processes Service Transition Processes Service Operation Processes Processes Demand Management Strategy Generation Service Portfolio Management IT Financial Management Service Catalogue Management Service Measurement Service Level Management Capacity Management Availability Management Service Continuity Management Information Security Management Supplier Management Transition Planning and Support Service Reporting Change Management Service Asset and Configuration Management Release and Deployment Management Service Validation and Testing Evaluation Knowledge Management Event Management Service Improvement Incident Management Request Fulfilment Problem Management Access Management Operation Management all stages of the lifecycle. They reside predominantly in Provider. In this scenario the Service Provider could be Service Strategy and Continual Service Improvement. Type I, II or III (refer to section 4.3 for a description of Service Provider types). The lifecycle structure of ITIL leverages process and activity elements throughout various stages of the lifecycle and Not all of the Service Management Model elements are Figure 10.2 illustrates the reach of each of the governance shown in their entirety in this scenario, but can be and operational elements across the lifecycle. referenced from the web portal in their entire depth and application. The use of this scenario is intended to help The illustrations that follow are an excerpt of the full ITIL you gain an understanding of the basic practice and integrated Service Management Model which is available process elements used across the ITIL Service Lifecycle. on the ITIL Live™ web portal (www.itil-live-portal.com). The specific sub-process activities and work instructions A particular scenario has been chosen to illustrate the flow are not shown here, but again, can be obtained from the and integration of the Service Management Model and ITIL web portal. how the lifecycle flows from the inception of a service to its retirement. The scenario involves a business outcome that will require a new service to be offered by a Service
147. The ITIL Service Management Model | 15110.2 BASIC ELEMENTSAs a Service Provider, the interactions you will have in thedevelopment and delivery of services to the business willdepend on the type of Service Provider you are.Type IFigure 10.3 Typical Type I Service Provider interactions Customer Complementor Service Provider Substitutor Supplier Generic Value NetworkAs discussed in earlier sections of this publication, a Type IService Provider (Figure 10.3) is most often the point offocus for the business customer and all IT service needsare managed by the Service Provider using a valuenetwork of partnerships.
148. 152 | The ITIL Service Management Model Type II Figure 10.4 Type II Service Provider interactions Business Services Business Services Business Customers Business Services Business Services Business Services Business Unit A Business Unit B Business Unit C Company IT Services IT Services IT Services Complementor Shared Service Substitutor Supplier Services Provider (Type II) Supplier Services Supplier Services Supplier Service Provider Type II Value Network A Type II Service Provider (Figure 10.4) will often be part of Regardless of the Service Provider type, each will require a shared Service Management Model and will provide the use of a range of Service Management Model process services to a number of business customers and manage and practice elements to manage services effectively and the interactions with the business customers and an measure the value provided to the business customer. external value network. Figure 10.6 outlines the main process elements across the A Type III Service Provider (Figure 10.5) is most often an Service Lifecycle model. They are depicted with a logical organization external to the business and interacts with flow pattern; however, they are not always executed in a the value network on behalf of the business customer. linear fashion and so this should be taken into account.
149. The ITIL Service Management Model | 153Type IIIFigure 10.5 Type III Service Provider interactions Business Customers Business Services Business Services Business Services Supplier Services External Service Supplier Services Complementor Substitutor Provider (Type III) Company Supplier Services Supplier Service Provider Type III Value NetworkEach of the start and termination nodes depicts an input Each of the elements shown is comprised of a variety ofthat triggers the process or an output that triggers another activities. These are not described here in detail butprocess. provided to illustrate the main practice activities an organization would expect to execute during the ServiceAs an example, Figure 10.6 illustrates that the trigger for Lifecycle. Details about each of these can be found in thethe Service Strategy processes is a desired business ITIL Service Management core lifecycle publications andstrategy. The termination of the Service Strategy processes on the ITIL Live™ web portal (www.itil-live-portal.com).is the chartering of a service and the supply of a ServiceLevel Package, which then triggers the Service Designprocesses, and so on.Within each process element, a number of main practiceelements accompany each process and are carried outduring the lifecycle. Figure 10.7 illustrates these.
150. 154 | The ITIL Service Management Model Figure 10.6 Basic Service Management Model process elements ITIL Service Lifecycle – Main Process Elements Continual Service Service Service Strategy Service Design Service Transition Operation Improvement Service Level Service Design Business Strategy Early Life Support Service Reporting Package Package Service Transition Strategy Event Service Catalogue Planning & Generation Management Measurement Management Support Financial Capacity Change Request Service Management Management Management Fulfilment Analysis Service Asset Demand Availability & Incident Service Management Management Configuration Management Reporting Management Service Validation & Service Level Problem Service Portfolio Testing Management Management Improvement Management Management Information Release & Feedback Charter Service Technology throughout the Security Deployment lifecycle Management Management Management Supplier Evaluation Access Management Management Management IT Service Service Operations Continuity Knowledge Management Management Management Service Service Design Performance Service Released Package Reporting Denotes main Denotes pre- input or output defined practice, activity or process element
151. The ITIL Service Management Model | 155Figure 10.7 ITIL Service Lifecycle main practice elements ITIL Service Lifecycle – Main Practice Elements Define Develop the Develop Strategy Service Required business Define the Develop Cost Charter service Service Strategic outcome identified market Model Service structures Portfolio Assets Design Design Create Design Service Design Service Level management measurement Design Design Service technology systems & systems, Design Package methods & Processes Solutions architecture tools Package metrics Plan, Build, Conduct Transition Develop Coordinate Transfer, Service Service Design Organization Test and Service Deploy or Provide Early Transition & Validate Package and Service Service Testing and Retire Life Support Support Plan Change Service Release Pilots Operation Monitor & Manage Manage Generate Participate in Provide Service Customer Events, metrics on strategy, Service Deployed Service Control requests and Incidents Service design and Performance Services communication problems performance transition Reports Improvement Continual Provide multi- Conduct Liaise with Create Service Analyze and view Define Strategy, Service Service Service Reports trends service assessments & performance service Design, Improvement reports performance benchmarks Operation & results baselines Transition Programme10.3 CREATING A SERVICE publication). This is achieved through a strategic assessment, establishing objectives and a resulting serviceThe next series of workflow diagrams will take you strategy. In our chosen scenario – creating a service – notthrough the practices, processes and activities of creating all of these must be executed each and every time.a service. As in the earlier diagrams, these are onlydepicted at the top level of workflow, but they will Assuming we have a Service Portfolio in place, theprovide a solid understanding of the elements required. creation of a service must be subject to an evaluation of the existing services and provider capabilities to determine the best course of action.10.4 STRATEGY GENERATION Figure 10.9 illustrates the breadth of a Service PortfolioWhen a business identifies a needed outcome, Service and the elements that need to be assessed to decide onStrategy must define a number of supporting elements to the course of action.deliver it. First, the perspectives, positions, plans andpatterns of actions that help define the market spaces thatthe service will thrive in to deliver business value must beevaluated (see Figure 10.8, taken from the Service Strategy
152. 156 | The ITIL Service Management Model Figure 10.8 Forming and formulating a Service Strategy Measurement and evaluation Strategic assessment Strategy generation, evaluation and selection Determine Analyse perspective external Vision factors Form a position Policies Continual Establish Service Service objectives Strategy Improvement • Service Portfolio Craft a plan • Service Design Plans requirements Analyse • Service Transition internal requirements factors Adopt • Service Operation patterns of requirements action Actions Measurement and evaluation
153. The ITIL Service Management Model | 157Figure 10.9 The Service Portfolio Service Portfolio Service Catalogue Service Pipeline Continual Service Improvement Third-party Market catalogue spaces Service design Service Service Service Retired concepts transition operation services Customers Resources Return on assets Resources engaged earned from released Service operation Common pool of resources Area of circle is proportional to resources currently engaged in the lifecycle phase (Service Portfolio and Financial Management)
154. 158 | The ITIL Service Management Model 10.5 DECIDING THE COURSE OF ACTION TO If during this assessment the business decides that the CREATE A NEW SERVICE options available cannot be committed to at the time, Continual Service Improvement will review this periodically 10.5.1 Stage 1 – Service Strategy elements to determine if a future time is appropriate to charter and create the service or if there are external catalysts that In Figure 10.10, Service Strategy evaluates the Service might make it feasible to proceed at a particular point in Portfolio to determine if existing capabilities are in place time as part of a service improvement programme. to create the service and deliver the desired business outcomes. Note that other parts of the ITIL Service 10.5.2 Stage 2 – Design the solution Lifecycle are involved during the assessment. For example Service Design will evaluate the existing Service Catalogue In this stage, all parts of the Service Lifecycle are involved to determine if live services can be tagged to deliver the (Figure 10.11). Each provides input as part of the required business outcomes. Service Transition becomes requirements-gathering stage to ensure that a full service- involved when the new service is designed either from focused view is understood and leveraged when designing existing capabilities in the Service Portfolio or Catalogue, the service. Examples of the benefits in involving all parts or added to them, and moves to the transition stage of of the Service Provider network are: the Service Lifecycle. Figure 10.10 Stage 1 – Service Strategy elements Service Strategy – Define Market Yes Strategy Tag service Service Match outcome to Identify business services in Service portfolio with New service Customer will A good match? Yes Charter Service outcome Portfolio pipeline service concept Justified? commit? outcome No No Yes Service Design Match outcome to Design Tag service with Negotiate Service Add to Contract services in Service A good match? Yes Service outcome Level Agreement Portfolio Catalogue Solution Transition Service No Prepare for Transition Operation Service Improvement Continual Service Review desired outcome periodically or on exception
155. The ITIL Service Management Model | 159Figure 10.11 Stage 2 – Design service solution Service Design – Design Service Solution Service Level Strategy Requirements Service Package No Yes signed off? Buy Buy Conduct Complete Finalize Create Service Evaluate and Service Design Obtain Issue RFI or Stakeholder Requirements requirements Build or buy? Design procure signoff RFT Interviews template catalogue Package service Build Build Transition Provide input Service Service Design to Package requirements Operation Provide input Service to requirements Improvement Continual Service Provide input to requirements Ability to re-use existing technology and resources in A full description of these elements and the guidance on the operation and support of the new services executing them can be found in the Service Design core Understanding the impact across the Service Provider publication. network of introducing a new service Ensuring that the new Service Design is consistent with 10.5.3 Stage 3 – Transition the service the capabilities planned and future investment strategy For a service being built, once the Service Design Package of the organization. (SDP) has been created during the Service Design stage, the service can be planned, built, tested and deployed.It is important to note that the Service Design stage of the During the Service Transition stage the elements executedlifecycle will also consider design activities that ensure draw from key Service Transition processes:Availability, Capacity, Security, Service Continuity etc. Thisis done during the solution design as part of the five Transition Planning and Supportaspects of Service Design (refer to the Service Design core Change Managementpublication). The detailed Service Management Model Service Asset and Configuration Managementelements for these are available on the ITIL Live Web Service Validation and Testing Managementportal (www.itil-live-portal.com). Release and Deployment Management.
156. 160 | The ITIL Service Management Model Figure 10.12 Stage 3 – Transition the service Service Transition – Transition Service Strategy Service Revise Service Service Design Create Service Design Package Design Package No Review & Design Service Create service Service Design Conduct Service Service release Acceptance of Acceptance Acceptable? release test criteria Package Acceptance test package test Service Transition inputs Criteria & plan No Yes Raise RFC & Assess, evaluate Coordinate Conduct service Deploy record Build and Test the pilot Service configuration & authorize Change Passed tests? solution baselines change implementation Yes Operation Service Early life support Improvement Continual Service The process workflows for these can be found both in the Now that the scenario has reached the stage of going into Service Transition core publication and the ITIL Live web live operation, there are many interactions and information portal (www.itil-live-portal.com). flows that are being passed through the various stages of the ITIL Service Lifecycle. Figure 10.15 depicts some of Figure 10.14 shows an example of the Change those interactions from a view during the transition stage Management process as it would be executed in this of the lifecycle. Note the assortment of data and scenario. It would be included as part of the elements information passing between stages by this point in the shown in Figure 10.13, which are an extract from the creation of the service. ‘Transition the service’ workflow in Figure 10.12. The full Change Management process flow for these elements (Figure 10.14) is taken from the Service Transition publication.
157. The ITIL Service Management Model | 161Figure 10.13 Change Management elements Raise RFC & Assess, evaluate Coordinate record & authorize Change configuration change implementation baselinesFigure 10.14 Normal Change Management process Create RFC Change proposal (optional) Record the RFC Initiator requested Review RFC Change Update change and configuration information in CMS Management ready for evaluation Assess and evaluate change ready for decision Work orders Authorize Authorize Change proposal Change Change Authority authorized Plan updates Change Management scheduled Work orders Coordinate change implementation* Change Management implemented Evaluation report Review and close change record closed *Includes build and test the change
158. 162 | The ITIL Service Management Model Figure 10.15 Information flows at the Service Transition stage Customer Service Notification Service Release Service Design Package Transition Plan Package Release and Deployment Management Activities Transition within Transition Phase Planning and Service Design Support Processes Strategy Data Service Service Release Service Test Transition Change Request Report Package Service Transition Reports Improvement Plan Service Validation and Testing Service Change Strategy Service Management Activities Lifecycle Activities within Governance within Service Provider Processes Transition Change Request Transition Phase Phase Evaluation Activities Change Evaluation within Transition Phase Service Operation Processes Updated Service Asset Data Release Data Service Asset and Configuration Management Activities within Transition Phase Release Data Release Data Information Meta-data Design Data Operation Data Knowledge Management Service Design Activities Service Operation Activities Activities within within Transition Phase within Transition Phase Transition Phase 10.5.4 Stage 4 – Operate the service predicted results and meeting the business outcomes we In our scenario we have now deployed the new service started with. and have accepted it into live operation. But the work Beyond early life support, the service becomes ‘business as from Strategy, Design and Transition is not done. usual’ and is continuously monitored and controlled, Early life support is a critical part of ensuring that what we becoming part of the overall service value to the business have planned, built, tested and installed is producing the customer.
159. The ITIL Service Management Model | 163Figure 10.16 Stage 4 – Operate the service Service Operation – Operate Service Strategy Service Service Design Transition Change Service Management Early Life Support of live service Monitor & Control Event Incident Problem Access IT Operations & Service Operation service Management Management Management Management Administration Business Interface to Service Management Operational Customer Request Service Desk Change Self Service Fulfilment Management Improvement Continual Service Proactive Corrective Problem Action & Service Analysis ImprovementThe workflow in Figure 10.16 depicts the high-level provided with feedback on the performance of the newactivities within Service Operation. The details of each service, any issues that are revealed, how the businessprocess element and activity can be found in the Service customer is adapting to use of the new service, etc.Operation core publication and the ITIL Live™ web portal It is at this stage that the measurement systems and(www.itil-live-portal.com). metrics created at the design stage begin to be generatedDuring early life support Service Transition and Service and accumulated for service reporting. It is also at thisOperation work together. As is often the case, a number of stage that the quality and value of the new service areissues with a new service may be uncovered. Depending realized since the business is now fully engaged in its use.upon the nature of these, information should be recorded A few examples of the full process workflows in Serviceeither as events, incidents or known errors, and passed Operation are given in Figures 10.17 and 10.18. The fullalong the workflow accordingly. Service Strategy, Service integrated Service Management Model and process flowsDesign and Continual Service Improvement should be can be obtained on the ITIL Live web portal.
160. 164 | The ITIL Service Management Model Figure 10.17 The Event Management process Event Event Notification Generated Event Detected Event Filtered Informational Significance? Exception Warning Event Correlation Trigger Incident/ Event Logged Auto Response Alert Problem/ Incident Change? Change Problem Human Incident Problem Change Intervention Management Management Management Review Actions No Effective? Yes Close Event End
161. The ITIL Service Management Model | 165Figure 10.18 The Incident Management process flow From From User Email Event Web Phone Technical Mgmt Interface Call Staff Incident Identification Incident Logging Incident Categorization Yes Service Request? To Request Fulfilment No Incident Prioritization Major Incident Yes Procedure Major Incident? No Initial Diagnosis Functional Functional Yes Yes Escalation Escalation Needed? 2/3 Level Management Yes Hierarchic No Escalation Escalation Needed? No Investigation & Diagnosis Resolution and Recovery Incident Closure End
162. 166 | The ITIL Service Management Model The new service is now in full operation and much more Whatever the reason behind the need for change, the information is being exchanged within the ITIL Service Continual Service Improvement stage offers the means to Lifecycle. An example of this is provided in Figure 10.19. cast an eye over the performance, utility and warrant of the new service on an ongoing basis. 10.5.5 Stage 5 – Continual Service Figure 10.20 illustrates some of the main elements and Improvement processes involved in service improvement. Even a new designed service will undergo improvements The Continual Service Improvement core publication over time. There are many reasons for this. Business documents the full process elements. With a new service, outcomes change as business needs evolve. New the activities revolve around ensuring that business value technologies become available that are sought after to and expected outcomes are being achieved, and improve services. Competitive forces demand rapid identifying where there are opportunities to improve change capability for both business outcomes and Service further. Continual Service Improvement feeds back to Providers. every stage in the Service Lifecycle. Figure 10.19 Information flow in the Service Operation stage Customer IT Services Demand Problem Service Transition Request Incidents Incident Incidents Management Processes Fulfilment Management Activities within Operation Phase Charge Request Charge Request Access Request Service Release Package Incidents Service Transition Access Event Activities within Management Management Service Operation Operation Phase Improvement Plan Service Provider Charge Request Events Operation Data IT Services Service Reports Service Lifecycle Operation Management Activities within Operational Phase Governance Processes Supplier Services Demand Operation Data Operation Data Service Reports Service Operation Service Strategy Reports Service Design Activities within Activities within Operation Phase Operation Phase Supplier Services Supplier
163. The ITIL Service Management Model | 167Figure 10.20 Stage 5 – Continual Service Improvement Continual Service Improvement – Review Service Performance Strategy Feedback on Service improvement opportunities Feedback on Service Design improvement opportunities Transition Feedback on Service improvement opportunities Operation Service Feedback on improvement opportunities Improvement Continual Provide multi- Conduct Liaise with Create Service Analyze and view Define Strategy, Service Reports trends service Service service Service assessments & Design, performance performance benchmarks Operation & Improvement reports results baselines Transition ProgrammeFigure 10.21 shows the information flow within the Readers are encouraged to learn more about theprocess elements of Continual Service Improvement. integrated ITIL Service Management Model by exploring the core ITIL Service Management publications and visitingThese five stages form part of a larger, integrated Service the ITIL Live™ web portal (www.itil-live-portal.com).Management Model and show how they would be appliedfor the creation of a new service. Organizations shouldthink of the broader picture of the ebb, flow andinteractions within the Service Lifecycle.Figure 10.22 shows the high-level integrated flowbetween lifecycle stages.If we think of the main elements involved in the creationof a new service as layers through the lifecycle (Figure10.23), we see the interactions and dependencies neededto ensure that business outcomes and business value aremet.
164. 168 | The ITIL Service Management Model Figure 10.21 Information flow within Continual Service Improvement Service Service Improvement Plan Strategy Processes IT Strategy Service Service Analysis Service Supplier Service Improvement Plan Management Improvement Service Improvement Plans Service Reports Service Provider Service Internal Service Reports Lifecycle Service Reporting Operational Processes Supplier Service Reports Supplier
165. The ITIL Service Management Model | 169Figure 10.22 Integrated lifecycle elements flow Opportunities & Constraints Cost Models Return on Investment Return on Value IT Financial Management Service Service Level Strategy Service Package Strategy Define the Market Demand Develop Offerings Portfolio Generation Management Management Service Supplier Service Level Negotiate and Agree Design Solution Catalogue Management Management Management Service Design Service Package Reliabilty Balanced Design Requirements Measurement Systems Architecture Compliance Design Availability Capacity Security Continuity Quality Assurance Service Acceptance Conformance Utility and Warranty Decision Capability Planning & Support Validation & Testing Evaluation Knowledge Service Early Life Transition Service Asset & Release & Support Change Optimize Risk Verify Configuration Deployment Management Management Management Request Incident Event Resolve & Restore Monitor & Action Fulfilment Management Management Service Performance Service Reports Stability Optimization Monitor Control Loops Performance Quality for Cost Feedback Operation Operational Change Problem Technology Access Baseline & Metrics Data Analysis Corrective Action 7 Step Improvement Continual Service Service Improvement Service Define the Metrics Service Analyze Improvement Improve Measurement Reporting Plan
166. 170 | The ITIL Service Management Model Figure 10.23 Layered view of the main elements in the Service Lifecycle le cyc Life s vice nt Ser Eleme t rke e Ma efin –D ge1 Sta tion S olu the ign – Des g e2 Sta vice e Ser n th nsitio – Tra g e3 Sta vice e Ser ate th O per 4– ge Sta vice e Ser e th rov Imp e 5– Stag
168. | 173AcronymsACD Automatic Call Distribution CSI Continual Service ImprovementAM Availability Management CSIP Continual Service Improvement PlanAMIS Availability Management Information System CSP Core Service PackageASP Application Service Provider CTI Computer Telephony IntegrationBCM Business Capacity Management DIKW Data-to-Information-to-Knowledge-to- WisdomBCM Business Continuity Management ELS Early Life SupportBCP Business Continuity Plan eSCM-CL eSourcing Capability Model for ClientBIA Business Impact Analysis OrganizationsBRM Business Relationship Manager eSCM-SP eSourcing Capability Model for ServiceBSI British Standards Institution ProvidersBSM Business Service Management FMEA Failure Modes and Effects AnalysisCAB Change Advisory Board FTA Fault Tree AnalysisCAB/EC Change Advisory Board/Emergency IRR Internal Rate of Return Committee ISG IT Steering GroupCAPEX Capital Expenditure ISM Information Security ManagementCCM Component Capacity Management ISMS Information Security Management SystemCFIA Component Failure Impact Analysis ISO International Organization forCI Configuration Item StandardizationCMDB Configuration Management Database ISP Internet Service ProviderCMIS Capacity Management Information System IT Information TechnologyCMM Capability Maturity Model ITSCM IT Service Continuity ManagementCMMI Capability Maturity Model Integration ITSM IT Service ManagementCMS Configuration Management System itSMF IT Service Management ForumCOTS Commercial off the Shelf IVR Interactive Voice ResponseCSF Critical Success Factor KEDB Known Error Database
169. 174 | Acronyms KPI Key Performance Indicator SDP Service Design Package LOS Line of Service SFA Service Failure Analysis M_o_R Management of Risk SIP Service Improvement Plan MTBF Mean Time Between Failures SKMS Service Knowledge Management System MTBSI Mean Time Between Service Incidents SLA Service Level Agreement MTRS Mean Time to Restore Service SLM Service Level Management MTTR Mean Time to Repair SLP Service Level Package NPV Net Present Value SLR Service Level Requirement OGC Office of Government Commerce SMO Service Maintenance Objective OLA Operational Level Agreement SoC Separation of Concerns OPEX Operational Expenditure SOP Standard Operating Procedures OPSI Office of Public Sector Information SOR Statement of requirements PBA Pattern of Business Activity SPI Service Provider Interface PFS Prerequisite for Success SPM Service Portfolio Management PIR Post-Implementation Review SPO Service Provisioning Optimization PSA Projected Service Availability SPOF Single Point of Failure QA Quality Assurance TCO Total Cost of Ownership QMS Quality Management System TCU Total Cost of Utilization RCA Root Cause Analysis TO Technical Observation RFC Request for Change TOR Terms of Reference ROI Return on Investment TQM Total Quality Management RPO Recovery Point Objective UC Underpinning Contract RTO Recovery Time Objective UP User Profile SAC Service Acceptance Criteria VBF Vital Business Function SACM Service Asset and Configuration VOI Value on Investment Management WIP Work in Progress SCD Supplier and Contract Database SCM Service Capacity Management
171. | 177GlossaryThe publication names included in parentheses after the authorized Users are able to access or modify the Assets.name of a term identify where a reader can find more Access Management is sometimes referred to as Rightsinformation about that term. This is either because the Management or Identity Management.term is primarily used by that publication or becauseadditional useful information about that term can be Account Managerfound there. Terms without a publication name associated (Service Strategy) A Role that is very similar to Businesswith them may be used generally by several publications, Relationship Manager, but includes more commercialor may not be defined in any greater detail than can be aspects. Most commonly used when dealing with Externalfound in the glossary, i.e. we only point readers to Customers.somewhere they can expect to expand on theirknowledge or to see a greater context. Terms with Accountingmultiple publication names are expanded on in multiple (Service Strategy) The Process responsible for identifyingpublications. actual Costs of delivering IT Services, comparing theseWhere the definition of a term includes another term, with budgeted costs, and managing variance from thethose related terms are given initial capitals. This is Budget.designed to help the reader with their understanding bypointing them to additional definitions that are all part of Accreditedthe original term they were interested in. The form ‘See Officially authorized to carry out a Role. For example analso Term X, Term Y’ is used at the end of a definition Accredited body may be authorized to provide training orwhere an important related term is not used with the text to conduct Audits.of the definition itself. Active MonitoringAcceptance (Service Operation) Monitoring of a Configuration Item orFormal agreement that an IT Service, Process, Plan or other an IT Service that uses automated regular checks toDeliverable is complete, accurate, reliable and meets its discover the current status. See also Passive Monitoring.specified Requirements. Acceptance is usually precededby Evaluation or Testing and is often required before Activityproceeding to the next stage of a Project or Process. See A set of actions designed to achieve a particular result.also Service Acceptance Criteria. Activities are usually defined as part of Processes or Plans, and are documented in Procedures.Access Management(Service Operation) The Process responsible for allowingUsers to make use of IT Services, data, or other Assets.Access Management helps to protect the Confidentiality,Integrity and Availability of Assets by ensuring that only
172. 178 | Glossary Agreed Service Time Application Portfolio (Service Design) A synonym for Service Hours, commonly (Service Design) A database or structured Document used used in formal calculations of Availability. See also to manage Applications throughout their Lifecycle. The Downtime. Application Portfolio contains key Attributes of all Applications. The Application Portfolio is sometimes Agreement implemented as part of the Service Portfolio, or as part of A Document that describes a formal understanding the Configuration Management System. between two or more parties. An Agreement is not legally binding, unless it forms part of a Contract. See also Service Application Service Provider Level Agreement, Operational Level Agreement. (Service Design) An External Service Provider that provides IT Services using Applications running at the Service Alert Provider’s premises. Users access the Applications by (Service Operation) A warning that a threshold has been network connections to the Service Provider. reached, something has changed, or a Failure has occurred. Alerts are often created and managed by System Application Sizing Management tools and are managed by the Event (Service Design) The Activity responsible for understanding Management Process. the Resource Requirements needed to support a new Application, or a major Change to an existing Application. Analytical Modelling Application Sizing helps to ensure that the IT Service can (Service Strategy) (Service Design) (Continual Service meet its agreed Service Level Targets for Capacity and Improvement) A technique that uses mathematical Models Performance. to predict the behaviour of a Configuration Item or IT Service. Analytical Models are commonly used in Capacity Architecture Management and Availability Management. See also (Service Design) The structure of a System or IT Service, Modelling. including the Relationships of Components to each other and to the environment they are in. Architecture also Application includes the Standards and Guidelines that guide the Software that provides Functions that are required by an IT design and evolution of the System. Service. Each Application may be part of more than one IT Service. An Application runs on one or more Servers or Assembly Clients. See also Application Management, Application (Service Transition) A Configuration Item (CI) that is made Portfolio. up of a number of other CIs. For example a Server CI may contain CIs for CPUs, disks, memory, etc.; an IT Service CI Application Management may contain many hardware, software and other CIs. See (Service Design) (Service Operation) The Function also Component CI, Build. responsible for managing Applications throughout their Lifecycle.
173. Glossary | 179Assessment Records are accurate, or that Efficiency and EffectivenessInspection and analysis to check whether a Standard or set targets are being met. An Audit may be carried out byof Guidelines is being followed, that Records are accurate, internal or external groups. See also Certification,or that Efficiency and Effectiveness targets are being met. Assessment.See also Audit. Authority MatrixAsset See RACI.(Service Strategy) Any Resource or Capability. Assets of aService Provider including anything that could contribute Automatic Call Distributionto the delivery of a Service. Assets can be one of the (Service Operation) Use of Information Technology tofollowing types: Management, Organization, Process, direct an incoming telephone call to the most appropriateKnowledge, People, Information, Applications, person in the shortest possible time. ACD is sometimesInfrastructure and Financial Capital. called Automated Call Distribution.Asset Management Availability(Service Transition) Asset Management is the Process (Service Design) Ability of a Configuration Item or ITresponsible for tracking and reporting the value and Service to perform its agreed Function when required.ownership of financial Assets throughout their Lifecycle. Availability is determined by Reliability, Maintainability,Asset Management is part of an overall Service Asset and Serviceability, Performance and Security. Availability isConfiguration Management Process. See also Asset usually calculated as a percentage. This calculation is oftenRegister. based on Agreed Service Time and Downtime. It is Best Practice to calculate Availability using measurements ofAsset Register the Business output of the IT Service.(Service Transition) A list of Assets that includes theirownership and value. Asset Management maintains the Availability ManagementAsset Register. (Service Design) The Process responsible for defining, analysing, Planning, measuring and improving all aspectsAttribute of the Availability of IT services. Availability Management is(Service Transition) A piece of information about a responsible for ensuring that all IT Infrastructure, Processes,Configuration Item. Examples are: name, location, version Tools, Roles etc. are appropriate for the agreed Servicenumber and Cost. Attributes of CIs are recorded in the Level Targets for Availability.Configuration Management Database (CMDB). See alsoRelationship. Availability Management Information System (Service Design) A virtual repository of all AvailabilityAudit Management data, usually stored in multiple physicalFormal inspection and verification to check whether a locations.Standard or set of Guidelines is being followed, that
174. 180 | Glossary Availability Plan Benchmark (Service Design) A Plan to ensure that existing and future (Continual Service Improvement) The recorded state of Availability Requirements for IT Services can be provided something at a specific point in time. A Benchmark can be Cost Effectively. created for a Configuration, a Process or any other set of data. For example, a benchmark can be used in: Back-out Continual Service Improvement, to establish the See Remediation. current state for managing improvements Capacity Management, to document performance Backup characteristics during normal operations. (Service Design) (Service Operation) Copying data to See also Benchmarking, Baseline. protect against loss of Integrity or Availability of the original. Benchmarking Balanced Scorecard (Continual Service Improvement) Comparing a Benchmark with a Baseline or with Best Practice. The term (Continual Service Improvement) A management tool Benchmarking is also used to mean creating a series of developed by Drs Robert Kaplan (Harvard Business School) Benchmarks over time, and comparing the results to and David Norton. A Balanced Scorecard enables a measure progress or improvement. Strategy to be broken down into Key Performance Indicators. Performance against the KPIs is used to Best Practice demonstrate how well the Strategy is being achieved. A Balanced Scorecard has four major areas, each of which Proven Activities or Processes that have been successfully has a small number of KPIs. The same four areas are used by multiple Organizations. ITIL is an example of Best considered at different levels of detail throughout the Practice. Organization. Brainstorming Baseline (Service Operation) A technique that helps a team to (Continual Service Improvement) A Benchmark used as a generate ideas. Ideas are not reviewed during the reference point. For example: Brainstorming session, but at a later stage. Brainstorming is often used by Problem Management to identify possible An ITSM Baseline can be used as a starting point to causes. measure the effect of a Service Improvement Plan A Performance Baseline can be used to measure British Standards Institution changes in Performance over the lifetime of an IT The UK National Standards body, responsible for creating Service and maintaining British Standards. See www.bsi- A Configuration Management Baseline can be used to global.com for more information. See also ISO. enable the IT Infrastructure to be restored to a known Configuration if a Change or Release fails.
175. Glossary | 181Budget future Business Requirements for use in the Capacity Plan.A list of all the money an Organization or Business Unit See also Service Capacity Management.plans to receive, and plans to pay out, over a specifiedperiod of time. See also Budgeting, Planning. Business Case (Service Strategy) Justification for a significant item ofBudgeting expenditure. Includes information about Costs, benefits,The Activity of predicting and controlling the spending of options, issues, Risks and possible problems. See also Costmoney. Consists of a periodic negotiation cycle to set Benefit Analysis.future Budgets (usually annual) and the day-to-daymonitoring and adjusting of current Budgets. Business Continuity Management (Service Design) The Business Process responsible forBuild managing Risks that could seriously affect the Business.(Service Transition) The Activity of assembling a number of BCM safeguards the interests of key stakeholders,Configuration Items to create part of an IT Service. The reputation, brand and value-creating activities. The BCMterm Build is also used to refer to a Release that is Process involves reducing Risks to an acceptable level andauthorized for distribution. For example server Build or planning for the recovery of Business Processes should alaptop Build. See also Configuration Baseline. disruption to the Business occur. BCM sets the Objectives, Scope and Requirements for IT Service ContinuityBuild Environment Management.(Service Transition) A controlled Environment where Business Continuity PlanApplications, IT Services and other Builds are assembledprior to being moved into a Test or Live Environment. (Service Design) A Plan defining the steps required to Restore Business Processes following a disruption. The PlanBusiness will also identify the triggers for Invocation, people to be involved, communications etc. IT Service Continuity Plans(Service Strategy) An overall corporate entity or form a significant part of Business Continuity Plans.Organization formed of a number of Business Units. In thecontext of ITSM, the term Business includes public sector Business Customerand not-for-profit organizations, as well as companies. AnIT Service Provider provides IT Services to a Customer (Service Strategy) A recipient of a product or a Servicewithin a Business. The IT Service Provider may be part of from the Business. For example, if the Business is a carthe same Business as its Customer (Internal Service manufacturer then the Business Customer is someone whoProvider), or part of another Business (External Service buys a car.Provider). Business Impact AnalysisBusiness Capacity Management (BCM) (Service Strategy) BIA is the Activity in Business Continuity(Service Design) In the context of ITSM, Business Capacity Management that identifies Vital Business Functions andManagement is the Activity responsible for understanding their dependencies. These dependencies may include Suppliers, people, other Business Processes, IT Services etc.
176. 182 | Glossary BIA defines the recovery requirements for IT Services. Ensuring that the IT Service Provider is satisfying the These requirements include Recovery Time Objectives, Business needs of the Customers. Recovery Point Objectives and minimum Service Level This Process has strong links with Service Level Targets for each IT Service. Management. Business Objective Business Relationship Manager (Service Strategy) The Objective of a Business Process, or (Service Strategy) A Role responsible for maintaining the of the Business as a whole. Business Objectives support Relationship with one or more Customers. This Role is the Business Vision, provide guidance for the IT Strategy often combined with the Service Level Manager Role. See and are often supported by IT Services. also Account Manager. Business Operations Business Service (Service Strategy) The day-to-day execution, monitoring An IT Service that directly supports a Business Process, as and management of Business Processes. opposed to an Infrastructure Service, which is used internally by the IT Service Provider and is not usually Business Perspective visible to the Business. (Continual Service Improvement) An understanding of the Service Provider and IT Services from the point of view of The term Business Service is also used to mean a Service the Business, and an understanding of the Business from that is delivered to Business Customers by Business Units. the point of view of the Service Provider. For example, delivery of financial services to Customers of a bank, or goods to the Customers of a retail store. Successful delivery of Business Services often depends on Business Process one or more IT Services. A Process that is owned and carried out by the Business. A Business Process contributes to the delivery of a product Business Service Management or Service to a Business Customer. For example, a retailer may have a purchasing Process that helps to deliver (Service Strategy) (Service Design) An approach to the Services to its Business Customers. Many Business management of IT Services that considers the Business Processes rely on IT Services. Processes supported and the Business value provided. This term also means the management of Business Business Relationship Management Services delivered to Business Customers. (Service Strategy) The Process or Function responsible for maintaining a Relationship with the Business. Business Business Unit Relationship Management usually includes: (Service Strategy) A segment of the Business that has its Managing personal Relationships with Business own Plans, Metrics, income and Costs. Each Business Unit managers owns Assets and uses these to create value for Customers in the form of goods and Services. Providing input to Service Portfolio Management
177. Glossary | 183Call organizations with the essential elements of effective(Service Operation) A telephone call to the Service Desk processes. It can be used to guide process improvementfrom a User. A Call could result in an Incident or a Service across a project, a division or an entire organization. CMMIRequest being logged. helps integrate traditionally separate organizational functions, set process improvement goals and priorities,Call Centre provide guidance for quality processes, and provide a point of reference for appraising current processes. See(Service Operation) An Organization or Business Unit that www.sei.cmu.edu/cmmi for more information. See alsohandles large numbers of incoming and outgoing CMM, Maturity.telephone calls. See also Service Desk. CapacityCall Type (Service Design) The maximum Throughput that a(Service Operation) A Category that is used to distinguish Configuration Item or IT Service can deliver whilst meetingincoming requests to a Service Desk. Common call types agreed Service Level Targets. For some types of CI,are Incident, Service Request and Complaint. Capacity may be the size or volume, for example a disk drive.Capability(Service Strategy) The ability of an Organization, person, Capacity ManagementProcess, Application, Configuration Item or IT Service to (Service Design) The Process responsible for ensuring thatcarry out an Activity. Capabilities are intangible Assets of the Capacity of IT Services and the IT Infrastructure is ablean Organization. See also Resource. to deliver agreed Service Level Targets in a Cost Effective and timely manner. Capacity Management considers allCapability Maturity Model Resources required to deliver the IT Service, and plans for(Continual Service Improvement) The Capability Maturity short-, medium- and long-term Business Requirements.Model for Software (also known as the CMM and SW-CMM) is a model used to identify Best Practices to help Capacity Management Information Systemincrease Process Maturity. CMM was developed at the (Service Design) A virtual repository of all CapacitySoftware Engineering Institute (SEI) of Carnegie Mellon Management data, usually stored in multiple physicalUniversity, US. In 2000, the SW-CMM was upgraded to locations.CMMI® (Capability Maturity Model Integration). The SEI nolonger maintains the SW-CMM model, its associated Capacity Planappraisal methods or training materials. (Service Design) A Capacity Plan is used to manage theCapability Maturity Model Integration Resources required to deliver IT Services. The Plan contains scenarios for different predictions of Business demand, and(Continual Service Improvement) Capability Maturity costed options to deliver the agreed Service Level Targets.Model® Integration (CMMI) is a process improvementapproach developed by the Software Engineering Institute(SEI) of Carnegie Melon University, US. CMMI provides
178. 184 | Glossary Capacity Planning Change (Service Design) The Activity within Capacity Management (Service Transition) The addition, modification or removal responsible for creating a Capacity Plan. of anything that could have an effect on IT Services. The Scope should include all IT Services, Configuration Items, Capital Expenditure Processes, Documentation etc. (Service Strategy) The cost of purchasing something that will become a financial Asset, for example computer Change Advisory Board equipment and buildings. The value of the Asset is (Service Transition) A group of people that advises the Depreciated over multiple accounting periods. Change Manager in the assessment, prioritization and scheduling of Changes. This board is usually made up of Capital Item representatives from all areas within the IT Service (Service Strategy) Synonym for an Asset that is of interest Provider, representatives from the Business and Third to Financial Management because it is above an agreed Parties such as Suppliers. financial value. Change Case Capitalization (Service Operation) A technique used to predict the impact (Service Strategy) Identifying major Cost as Capital, even of proposed Changes. Change Cases use specific scenarios though no Asset is purchased. This is done to spread the to clarify the scope of proposed Changes and to help with impact of the Cost over multiple accounting periods. The Cost Benefit Analysis. See also Use Case. most common example of this is software development, or purchase of a software licence. Change History (Service Transition) Information about all changes made to Category a Configuration Item during its life. Change History A named group of things that have something in consists of all those Change Records that apply to the CI. common. Categories are used to group similar things together. For example, Cost Types are used to group Change Management similar types of Cost. Incident Categories are used to (Service Transition) The Process responsible for controlling group similar types of Incident, CI Types are used to group the Lifecycle of all Changes. The primary objective of similar types of Configuration Item. Change Management is to enable beneficial Changes to be made, with minimum disruption to IT Services. Certification Issuing a certificate to confirm Compliance to a Standard. Change Model Certification includes a formal Audit by an independent (Service Transition) A repeatable way of dealing with a and Accredited body. The term Certification is also used to particular Category of Change. A Change Model defines mean awarding a certificate to verify that a person has specific pre-defined steps that will be followed for a achieved a qualification. change of this Category. Change Models may be very simple, with no requirement for approval (e.g. Password
179. Glossary | 185Reset) or may be very complex with many steps that Chronological Analysisrequire approval (e.g. major software release). See also (Service Operation) A technique used to help identifyStandard Change, Change Advisory Board. possible causes of Problems. All available data about the Problem is collected and sorted by date and time toChange Record provide a detailed timeline. This can make it possible to(Service Transition) A Record containing the details of a identify which Events may have been triggered by others.Change. Each Change Record documents the Lifecycle of asingle Change. A Change Record is created for every CI TypeRequest for Change that is received, even those that are (Service Transition) A Category that is used to Classify CIs.subsequently rejected. Change Records should reference The CI Type identifies the required Attributes andthe Configuration Items that are affected by the Change. Relationships for a Configuration Record. Common CIChange Records are stored in the Configuration Types include: Hardware, Document, User etc.Management System. ClassificationChange Request The act of assigning a Category to something.See Request for Change. Classification is used to ensure consistent management and reporting. CIs, Incidents, Problems, Changes etc. areChange Schedule usually classified.(Service Transition) A Document that lists all approvedChanges and their planned implementation dates. A ClientChange Schedule is sometimes called a Forward Schedule A generic term that means a Customer, the Business or aof Change, even though it also contains information about Business Customer. For example, Client Manager may beChanges that have already been implemented. used as a synonym for Account Manager.Change Window The term client is also used to mean:(Service Transition) A regular, agreed time when Changes A computer that is used directly by a User, for exampleor Releases may be implemented with minimal impact on a PC, handheld computer or workstationServices. Change Windows are usually documented in The part of a client-server application that the UserSLAs. directly interfaces with. For example an e-mail Client.Charging Closed(Service Strategy) Requiring payment for IT Services. (Service Operation) The final Status in the Lifecycle of anCharging for IT Services is optional, and many Incident, Problem, Change etc. When the Status is Closed,Organizations choose to treat their IT Service Provider as a no further action is taken.Cost Centre.
180. 186 | Glossary Closure Component Capacity Management (Service Operation) The act of changing the Status of an (Service Design) (Continual Service Improvement) The Incident, Problem, Change, etc. to Closed. Process responsible for understanding the Capacity, Utilization and Performance of Configuration Items. Data is COBIT collected, recorded and analysed for use in the Capacity (Continual Service Improvement) Control Objectives for Plan. See also Service Capacity Management. Information and related Technology (COBIT) provides guidance and Best Practice for the management of IT Component CI Processes. COBIT is published by the IT Governance (Service Transition) A Configuration Item that is part of an Institute. See www.isaca.org for more information. Assembly. For example, a CPU or memory CI may be part of a Server CI. Code of Practice A Guideline published by a public body or a Standards Component Failure Impact Analysis Organization, such as ISO or BSI. Many Standards consist (Service Design) A technique that helps to identify the of a Code of Practice and a Specification. The Code of impact of CI failure on IT Services. A matrix is created with Practice describes recommended Best Practice. IT Services on one edge and CIs on the other. This enables the identification of critical CIs (that could cause the failure Cold Standby of multiple IT Services) and of fragile IT Services (that have See Gradual Recovery. multiple Single Points of Failure). Commercial off the Shelf Computer Telephony Integration (Service Design) Application software or Middleware that (Service Operation) Computer Telephony Integration (CTI) can be purchased from a Third Party. is a general term covering any kind of integration between computers and telephone Systems. It is most commonly Compliance used to refer to Systems where an Application displays detailed screens relating to incoming or outgoing Ensuring that a Standard or set of Guidelines is followed, telephone calls. See also Automatic Call Distribution, or that proper, consistent accounting or other practices Interactive Voice Response. are being employed. Concurrency Component A measure of the number of Users engaged in the same A general term that is used to mean one part of Operation at the same time. something more complex. For example, a computer System may be a component of an IT Service; an Confidentiality Application may be a Component of a Release Unit. Components that need to be managed should be (Service Design) A security principle that requires that data Configuration Items. should only be accessed by authorized people.
181. Glossary | 187Configuration Configuration Management(Service Transition) A generic term, used to describe a (Service Transition) The Process responsible for maintaininggroup of Configuration Items that work together to deliver information about Configuration Items required to deliveran IT Service, or a recognizable part of an IT Service. an IT Service, including their Relationships. ThisConfiguration is also used to describe the parameter information is managed throughout the Lifecycle of the CI.settings for one or more CIs. Configuration Management is part of an overall Service Asset and Configuration Management Process.Configuration Baseline(Service Transition) A Baseline of a Configuration that has Configuration Management Databasebeen formally agreed and is managed through the Change (Service Transition) A database used to store ConfigurationManagement process. A Configuration Baseline is used as Records throughout their Lifecycle. The Configurationa basis for future Builds, Releases and Changes. Management System maintains one or more CMDBs, and each CMDB stores Attributes of CIs, and Relationships withConfiguration Control other CIs.(Service Transition) The Activity responsible for ensuringthat adding, modifying or removing a CI is properly Configuration Management Systemmanaged, for example by submitting a Request for (Service Transition) A set of tools and databases that areChange or Service Request. used to manage an IT Service Provider’s Configuration data. The CMS also includes information about Incidents,Configuration Identification Problems, Known Errors, Changes and Releases; and may(Service Transition) The Activity responsible for collecting contain data about employees, Suppliers, locations,information about Configuration Items and their Business Units, Customers and Users. The CMS includesRelationships, and loading this information into the CMDB. tools for collecting, storing, managing, updating andConfiguration Identification is also responsible for labelling presenting data about all Configuration Items and theirthe CIs themselves, so that the corresponding Relationships. The CMS is maintained by ConfigurationConfiguration Records can be found. Management and is used by all IT Service Management Processes. See also Configuration Management Database.Configuration Item Configuration Record(Service Transition) Any Component that needs to bemanaged in order to deliver an IT Service. Information (Service Transition) A Record containing the details of aabout each CI is recorded in a Configuration Record within Configuration Item. Each Configuration Record documentsthe Configuration Management System and is maintained the Lifecycle of a single CI. Configuration Records arethroughout its Lifecycle by Configuration Management. CIs stored in a Configuration Management Database.are under the control of Change Management. CIs typicallyinclude IT Services, hardware, software, buildings, people Configuration Structureand formal documentation such as Process documentation (Service Transition) The hierarchy and other Relationshipsand SLAs. between all the Configuration Items that comprise a Configuration.
182. 188 | Glossary Continual Service Improvement Roles, RAID, door locks etc. A Control is sometimes called a (Continual Service Improvement) A stage in the Lifecycle Countermeasure or safeguard. Control also means to of an IT Service and the title of one of the Core ITIL manage the utilization or behaviour of a Configuration publications. Continual Service Improvement is responsible Item, System or IT Service. for managing improvements to IT Service Management Processes and IT Services. The Performance of the IT Control Objectives for Information and Service Provider is continually measured and related Technology improvements are made to Processes, IT Services and IT See COBIT. Infrastructure in order to increase Efficiency, Effectiveness and Cost Effectiveness. See also Plan-Do-Check-Act. Control Perspective (Service Strategy) An approach to the management of IT Continuous Availability Services, Processes, Functions, Assets etc. There can be (Service Design) An approach or design to achieve 100% several different Control Perspectives on the same IT Availability. A Continuously Available IT Service has no Service, Process etc., allowing different individuals or planned or unplanned Downtime. teams to focus on what is important and relevant to their specific Role. Example Control Perspectives include Continuous Operation Reactive and Proactive management within IT Operations, (Service Design) An approach or design to eliminate or a Lifecycle view for an Application Project team. planned Downtime of an IT Service. Note that individual Configuration Items may be down even though the IT Control Processes Service is Available. The ISO/IEC 20000 Process group that includes Change Management and Configuration Management. Contract A legally binding Agreement between two or more parties. Core Service (Service Strategy) An IT Service that delivers basic Contract Portfolio Outcomes desired by one or more Customers. See also (Service Strategy) A database or structured Document used Supporting Service, Core Service Package. to manage Service Contracts or Agreements between an IT Service Provider and their Customers. Each IT Service Core Service Package delivered to a Customer should have a Contract or other (Service Strategy) A detailed description of a Core Service Agreement that is listed in the Contract Portfolio. See that may be shared by two or more Service Level Service Portfolio, Service Catalogue. Packages. See also Service Package. Control Cost A means of managing a Risk, ensuring that a Business The amount of money spent on a specific Activity, IT Objective is achieved, or ensuring that a Process is Service or Business Unit. Costs consist of real cost (money), followed. Example Controls include Policies, Procedures, notional cost such as people’s time, and Depreciation.
183. Glossary | 189Cost Benefit Analysis example hardware, software, people, accommodation,An Activity that analyses and compares the costs and the external and Transfer. See also Cost Element, Cost Unit.benefits involved in one or more alternative courses ofaction. See also Business Case, Net Present Value, Internal Cost UnitRate of Return, Return on Investment, Value on (Service Strategy) The lowest level of category to whichInvestment. Costs are assigned, Cost Units are usually things that can be easily counted (e.g. staff numbers, software licences) orCost Centre things easily measured (e.g. CPU usage, electricity(Service Strategy) A Business Unit or Project to which costs consumed). Cost Units are included within Cost Elements.are assigned. A Cost Centre does not charge for Services For example a Cost Element of ‘expenses’ could includeprovided. An IT Service Provider can be run as a Cost Cost Units of hotels, transport, meals etc. See also CostCentre or a Profit Centre. Type.Cost Effectiveness CountermeasureA measure of the balance between the Effectiveness and Can be used to refer to any type of Control. The termCost of a Service, Process or activity. A Cost Effective Countermeasure is most often used when referring toProcess is one that achieves its Objectives at minimum measures that increase Resilience, Fault Tolerance orCost. See also KPI, Return on Investment, Value for Money. Reliability of an IT Service.Cost Element Course Corrections(Service Strategy) The middle level of category to which Changes made to a Plan or Activity that has alreadyCosts are assigned in Budgeting and Accounting. The started to ensure that it will meet its Objectives. Coursehighest-level category is Cost Type. For example a Cost corrections are made as a result of Monitoring progress.Type of ‘people’ could have cost elements of payroll, staffbenefits, expenses, training, overtime etc. Cost Elements CRAMMcan be further broken down to give Cost Units. For A methodology and tool for analysing and managingexample the Cost Element ‘expenses’ could include Cost Risks. CRAMM was developed by the UK Government, butUnits of Hotels, Transport, Meals etc. is now privately owned. See www.cramm.com for further information.Cost Management(Service Strategy) A general term that is used to refer to Crisis ManagementBudgeting and Accounting, sometimes used as a synonym (IT Service Continuity Management) Crisis Management isfor Financial Management. the Process responsible for managing the wider implications of Business Continuity. A Crisis ManagementCost Type team is responsible for Strategic issues such as managing(Service Strategy) The highest level of category to which media relations and shareholder confidence, and decidesCosts are assigned in Budgeting and Accounting. For when to invoke Business Continuity Plans.
184. 190 | Glossary Critical Success Factor Data-to-Information-to-Knowledge-to- Something that must happen if a Process, Project, Plan or Wisdom IT Service is to succeed. KPIs are used to measure the A way of understanding the relationships between data, achievement of each CSF. For example a CSF of ‘protect IT information, knowledge and wisdom. DIKW shows how Services when making Changes’ could be measured by each of these builds on the others. KPIs such as ‘percentage reduction of unsuccessful Changes’, ‘percentage reduction in Changes causing Definitive Media Library Incidents’ etc. (Service Transition) One or more locations in which the definitive and approved versions of all software Culture Configuration Items are securely stored. The DML may also A set of values that is shared by a group of people, contain associated CIs such as licences and including expectations about how people should behave, documentation. The DML is a single logical storage area their ideas, beliefs and practices. See also Vision. even if there are multiple locations. All software in the DML is under the control of Change and Release Customer Management and is recorded in the Configuration Someone who buys goods or Services. The Customer of an Management System. Only software from the DML is IT Service Provider is the person or group that defines and acceptable for use in a Release. agrees the Service Level Targets. The term Customers is also sometimes informally used to mean Users, for Deliverable example ‘this is a Customer-focused Organization’. Something that must be provided to meet a commitment in a Service Level Agreement or a Contract. Deliverable is Customer Portfolio also used in a more informal way to mean a planned (Service Strategy) A database or structured Document used output of any Process. to record all Customers of the IT Service Provider. The Customer Portfolio is the Business Relationship Manager’s Demand Management view of the Customers who receive Services from the IT Activities that understand and influence Customer demand Service Provider. See also Contract Portfolio, Service for Services and the provision of Capacity to meet these Portfolio. demands. At a Strategic level Demand Management can involve analysis of Patterns of Business Activity and User Dashboard Profiles. At a tactical level it can involve use of Differential (Service Operation) A graphical representation of overall IT Charging to encourage Customers to use IT Services at less Service Performance and Availability. Dashboard images busy times. See also Capacity Management. may be updated in real-time, and can also be included in management reports and web pages. Dashboards can be Deming Cycle used to support Service Level Management, Event See Plan-Do-Check-Act. Management or Incident Diagnosis.
185. Glossary | 191Dependency Test Environments or Live Environments. See alsoThe direct or indirect reliance of one Process or Activity on Development.another. DiagnosisDeployment (Service Operation) A stage in the Incident and Problem(Service Transition) The Activity responsible for movement Lifecycles. The purpose of Diagnosis is to identify aof new or changed hardware, software, documentation, Workaround for an Incident or the Root Cause of aProcess etc. to the Live Environment. Deployment is part Problem.of the Release and Deployment Management Process. Seealso Rollout. Diagnostic Script (Service Operation) A structured set of questions used byDepreciation Service Desk staff to ensure they ask the correct questions,(Service Strategy) A measure of the reduction in value of and to help them Classify, Resolve and assign Incidents.an Asset over its life. This is based on wearing out, Diagnostic Scripts may also be made available to Users toconsumption or other reduction in the useful economic help them diagnose and resolve their own Incidents.value. Differential ChargingDesign A technique used to support Demand Management by(Service Design) An Activity or Process that identifies charging different amounts for the same IT ServiceRequirements and then defines a solution that is able to Function at different times.meet these Requirements. See also Service Design. Direct CostDetection (Service Strategy) A cost of providing an IT Service which(Service Operation) A stage in the Incident Lifecycle. can be allocated in full to a specific Customer, Cost Centre,Detection results in the Incident becoming known to the Project etc. For example, the cost of providing non-sharedService Provider. Detection can be automatic, or can be servers or software licences. See also Indirect Cost.the result of a user logging an Incident. Directory ServiceDevelopment (Service Operation) An Application that manages(Service Design) The Process responsible for creating or information about IT Infrastructure available on a network,modifying an IT Service or Application. Also used to mean and corresponding User access Rights.the Role or group that carries out Development work. Do NothingDevelopment Environment (Service Design) A Recovery Option. The Service Provider(Service Design) An Environment used to create or modify formally agrees with the Customer that Recovery of this ITIT Services or Applications. Development Environments are Service will not be performed.not typically subjected to the same degree of control as
186. 192 | Glossary Document Effectiveness Information in readable form. A Document may be paper (Continual Service Improvement) A measure of whether or electronic. For example, a Policy statement, Service the Objectives of a Process, Service or Activity have been Level Agreement, Incident Record, diagram of computer achieved. An Effective Process or activity is one that room layout. See also Record. achieves its agreed Objectives. See also KPI. Downtime Efficiency (Service Design) (Service Operation) The time when a (Continual Service Improvement) A measure of whether Configuration Item or IT Service is not Available during its the right amount of resources have been used to deliver a Agreed Service Time. The Availability of an IT Service is Process, Service or Activity. An Efficient Process achieves its often calculated from Agreed Service Time and Downtime. Objectives with the minimum amount of time, money, people or other resources. See also KPI. Driver Something that influences Strategy, Objectives or Emergency Change Requirements. For example, new legislation or the actions (Service Transition) A Change that must be introduced as of competitors. soon as possible. For example, to resolve a Major Incident or implement a Security patch. The Change Management Early Life Support Process will normally have a specific Procedure for (Service Transition) Support provided for a new or handling Emergency Changes. See also Emergency Change Changed IT Service for a period of time after it is Released. Advisory Board (ECAB). During Early Life Support the IT Service Provider may review the KPIs, Service Levels and Monitoring Thresholds, Emergency Change Advisory Board and provide additional Resources for Incident and Problem (Service Transition) A sub-set of the Change Advisory Board Management. that makes decisions about high-impact Emergency Changes. Membership of the ECAB may be decided at the Economies of scale time a meeting is called, and depends on the nature of (Service Strategy) The reduction in average Cost that is the Emergency Change. possible from increasing the usage of an IT Service or Asset. See also Economies of scope. Environment (Service Transition) A subset of the IT Infrastructure that is Economies of scope used for a particular purpose. For example: Live (Service Strategy) The reduction in Cost that is allocated to Environment, Test Environment, Build Environment. It is an IT Service by using an existing Asset for an additional possible for multiple Environments to share a purpose. For example, delivering a new IT Service from Configuration Item, for example Test and Live existing IT Infrastructure. See also Economies of scale. Environments may use different partitions on a single mainframe computer. Also used in the term Physical Environment to mean the accommodation, air conditioning, power system etc.
187. Glossary | 193Environment is also used as a generic term to mean the Estimationexternal conditions that influence or affect something. The use of experience to provide an approximate value for a Metric or Cost. Estimation is also used in Capacity andError Availability Management as the cheapest and least(Service Operation) A design flaw or malfunction that accurate Modelling method.causes a Failure of one or more Configuration Items or ITServices. A mistake made by a person or a faulty Process Evaluationthat affects a CI or IT Service is also an Error. (Service Transition) The Process responsible for assessing a new or Changed IT Service to ensure that Risks have beenEscalation managed and to help determine whether to proceed with(Service Operation) An Activity that obtains additional the Change.Resources when these are needed to meet Service Level Evaluation is also used to mean comparing an actualTargets or Customer expectations. Escalation may be Outcome with the intended Outcome, or comparing oneneeded within any IT Service Management Process, but is alternative with another.most commonly associated with Incident Management,Problem Management and the management of Customercomplaints. There are two types of Escalation, Functional EventEscalation and Hierarchic Escalation. (Service Operation) A change of state that has significance for the management of a Configuration Item or IT Service.eSourcing Capability Model for Client The term Event is also used to mean an Alert orOrganizations notification created by any IT Service, Configuration Item(Service Strategy) A framework to help Organizations or Monitoring tool. Events typically require IT Operationsguide their analysis and decisions on Service Sourcing personnel to take actions, and often lead to IncidentsModels and Strategies. eSCM-CL was developed by being logged.Carnegie Mellon University, US. See also eSourcingCapability Model for Service Providers. Event Management (Service Operation) The Process responsible for managingeSourcing Capability Model for Service Events throughout their Lifecycle. Event Management isProviders one of the main Activities of IT Operations.(Service Strategy) A framework to help IT Service Providersdevelop their IT Service Management Capabilities from a Exception ReportService Sourcing perspective. eSCM-SP was developed by A Document containing details of one or more KPIs orCarnegie Mellon University, US. See also eSourcing other important targets that have exceeded definedCapability Model for Client Organizations. thresholds. Examples include SLA targets being missed or about to be missed, and a Performance Metric indicating a potential Capacity problem.
188. 194 | Glossary Expanded Incident Lifecycle Failure (Availability Management) Detailed stages in the Lifecycle (Service Operation) Loss of ability to Operate to of an Incident. The stages are Detection, Diagnosis, Repair, Specification, or to deliver the required output. The term Recovery, Restoration. The Expanded Incident Lifecycle is Failure may be used when referring to IT Services, used to help understand all contributions to the Impact of Processes, Activities, Configuration Items etc. A Failure Incidents and to Plan how these could be controlled or often causes an Incident. reduced. Failure Modes and Effects Analysis External Customer An approach to assessing the potential Impact of Failures. A Customer who works for a different Business to the IT FMEA involves analysing what would happen after Failure Service Provider. See also External Service Provider, Internal of each Configuration Item, all the way up to the effect on Customer. the Business. FMEA is often used in Information Security Management and in IT Service Continuity Planning. External Metric A Metric that is used to measure the delivery of IT Service Fast Recovery to a Customer. External Metrics are usually defined in SLAs (Service Design) A Recovery Option that is also known as and reported to Customers. See also Internal Metric. Hot Standby. Provision is made to Recover the IT Service in a short period of time: typically less than 24 hours. External Service Provider Immediate Recovery typically uses a dedicated Fixed (Service Strategy) An IT Service Provider that is part of a Facility with computer Systems, and software configured different Organization to its Customer. An IT Service ready to run the IT Services. Immediate Recovery may take Provider may have both Internal Customers and External up to 24 hours if there is a need to Restore data from Customers. See also Type III Service Provider. Backups. External Sourcing Fault See Outsourcing. See Error. Facilities Management Fault Tolerance (Service Operation) The Function responsible for managing (Service Design) The ability of an IT Service or the physical Environment where the IT Infrastructure is Configuration Item to continue to Operate correctly after located. Facilities Management includes all aspects of Failure of a Component part. See also Resilience, managing the physical Environment, for example power Countermeasure. and cooling, building Access Management, and environmental Monitoring. Fault Tree Analysis (Service Design) (Continual Service Improvement) A technique that can be used to determine the chain of events that leads to a Problem. Fault Tree Analysis
189. Glossary | 195represents a chain of events using Boolean notation in a Requests are passed between groups in different timediagram. zones.Financial Management Fulfilment(Service Strategy) The Function and Processes responsible Performing Activities to meet a need or Requirement. Forfor managing an IT Service Provider’s Budgeting, example, by providing a new IT Service, or meeting aAccounting and Charging Requirements. Service Request.First-line Support Function(Service Operation) The first level in a hierarchy of Support A team or group of people and the tools they use to carryGroups involved in the resolution of Incidents. Each level out one or more Processes or Activities. For example thecontains more specialist skills, or has more time or other Service Desk.resources. See also Escalation. The term Function also has two other meanings:Fishbone Diagram An intended purpose of a Configuration Item, Person,See Ishikawa Diagram. Team, Process or IT Service. For example one Function of an e-mail Service may be to store and forward outgoing mails, one Function of a Business ProcessFit for Purpose may be to dispatch goods to CustomersAn informal term used to describe a Process, Configuration To perform the intended purpose correctly, ‘TheItem, IT Service etc. that is capable of meeting its computer is Functioning’.objectives or Service Levels. Being Fit for Purpose requiressuitable design, implementation, control and maintenance. Functional EscalationFixed Cost (Service Operation) Transferring an Incident, Problem or Change to a technical team with a higher level of(Service Strategy) A Cost that does not vary with IT Service expertise to assist in an Escalation.usage. For example the cost of Server hardware. See alsoVariable Cost. Gap AnalysisFixed Facility (Continual Service Improvement) An Activity that compares two sets of data and identifies the differences. Gap(Service Design) A permanent building, available for use Analysis is commonly used to compare a set ofwhen needed by an IT Service Continuity Plan. See also Requirements with actual delivery. See also Benchmarking.Recovery Option, Portable Facility. GovernanceFollow the Sun Ensuring that Policies and Strategy are actually(Service Operation) A methodology for using Service Desks implemented, and that required Processes are correctlyand Support Groups around the world to provide seamless followed. Governance includes defining Roles and24/7 Service. Calls, Incidents, Problems and Service
190. 196 | Glossary responsibilities, measuring and reporting, and taking Hot Standby actions to resolve any issues identified. See Fast Recovery or Immediate Recovery. Gradual Recovery Identity (IT Service Continuity Management) A Recovery Option (Service Operation) A unique name that is used to identify that is also known as Cold Standby. Provision is made to a User, person or Role. The Identity is used to grant Rights Recover the IT Service in a period of time greater than 72 to that User, person or Roles. Example Identities might be hours. Gradual Recovery typically uses a Portable or Fixed the username SmithJ or the Role ‘Change manager’. Facility that has environmental support and network cabling, but no computer Systems. The hardware and Immediate Recovery software are installed as part of the IT Service Continuity (Service Design) A Recovery Option that is also known as Plan. Hot Standby. Provision is made to Recover the IT Service with no loss of Service. Immediate Recovery typically uses Guideline Mirroring, Load Balancing and Split Site technologies. A Document describing Best Practice, which recommends what should be done. Compliance with a Guideline is not Impact normally enforced. See also Standard. (Service Operation) (Service Transition) A measure of the effect of an Incident, Problem or Change on Business Help Desk Processes. Impact is often based on how Service Levels (Service Operation) A point of contact for Users to log will be affected. Impact and Urgency are used to assign Incidents. A Help Desk is usually more technically focussed Priority. than a Service Desk and does not provide a Single Point of Contact for all interaction. The term Help Desk is often Incident used as a synonym for Service Desk. (Service Operation) An unplanned interruption to an IT Service or reduction in the Quality of an IT Service. Failure Hierarchic Escalation of a Configuration Item that has not yet affected Service is (Service Operation) Informing or involving more senior also an Incident. For example Failure of one disk from a levels of management to assist in an Escalation. mirror set. High Availability Incident Management (Service Design) An approach or design that minimizes or (Service Operation) The Process responsible for managing hides the effects of Configuration Item Failure on the users the Lifecycle of all Incidents. The primary Objective of of an IT Service. High Availability solutions are designed to Incident Management is to return the IT Service to achieve an agreed level of Availability and make use of Customers as quickly as possible. techniques such as Fault Tolerance, Resilience and Fast Recovery to reduce the number of Incidents, and the Impact of Incidents.
191. Glossary | 197Incident Record voice, images, video etc. Information Technology is often(Service Operation) A Record containing the details of an used to support Business Processes through IT Services.Incident. Each Incident record documents the Lifecycle ofa single Incident. Infrastructure Service An IT Service that is not directly used by the Business, butIndirect Cost is required by the IT Service Provider so they can provide(Service Strategy) A Cost of providing an IT Service, which other IT Services. For example directory services, namingcannot be allocated in full to a specific Customer. For services or communication services.example, the Cost of providing shared Servers or softwarelicences. Also known as Overhead. See also Direct Cost. Insourcing See Internal Sourcing.Information Security Management(Service Design) The Process that ensures the IntegrityConfidentiality, Integrity and Availability of an (Service Design) A security principle that ensures data andOrganization’s Assets, information, data and IT Services. Configuration Items are modified only by authorizedInformation Security Management usually forms part of an personnel and Activities. Integrity considers all possibleOrganizational approach to Security Management that has causes of modification, including software and hardwarea wider scope than the IT Service Provider, and includes Failure, environmental Events and human intervention.handling of paper, building access, phone calls etc. for theentire Organization. Interactive Voice Response (Service Operation) A form of Automatic Call DistributionInformation Security Management System that accepts User input, such as key presses and spoken(Service Design) The framework of Policy, Processes, commands, to identify the correct destination forStandards, Guidelines and tools that ensures an incoming Calls.Organization can achieve its Information SecurityManagement Objectives. Intermediate Recovery (Service Design) A Recovery Option that is also known asInformation Security Policy Warm Standby. Provision is made to Recover the IT Service(Service Design) The Policy that governs the Organization’s in a period of time between 24 and 72 hours.approach to Information Security Management. Intermediate Recovery typically uses a shared Portable or Fixed Facility that has Computer Systems and NetworkInformation Technology Components. The hardware and software will need to beThe use of technology for the storage, communication or configured, and data will need to be restored, as part ofprocessing of information. The technology typically the IT Service Continuity Plan.includes computers, telecommunications, Applications andother software. The information may include Business data,
192. 198 | Glossary Internal Customer national standards institutes of 156 countries. See A Customer who works for the same Business as the IT www.iso.org for further information about ISO. Service Provider. See also Internal Service Provider, External Customer. International Standards Organization See International Organization for Standardization (ISO). Internal Metric A Metric that is used within the IT Service Provider to Internet Service Provider Monitor the Efficiency, Effectiveness or Cost Effectiveness An External Service Provider that provides access to the of the IT Service Provider’s internal Processes. Internal Internet. Most ISPs also provide other IT Services such as Metrics are not normally reported to the Customer of the web hosting. IT Service. See also External Metric. Invocation Internal Rate of Return (Service Design) Initiation of the steps defined in a plan. (Service Strategy) A technique used to help make For example initiating the IT Service Continuity Plan for decisions about Capital Expenditure. IRR calculates a figure one or more IT Services. that allows two or more alternative investments to be compared. A larger IRR indicates a better investment. See Ishikawa Diagram also Net Present Value, Return on Investment. (Service Operation) (Continual Service Improvement) A technique that helps a team to identify all the possible Internal Service Provider causes of a Problem. Originally devised by Kaoru Ishikawa, (Service Strategy) An IT Service Provider that is part of the the output of this technique is a diagram that looks like a same Organization as its Customer. An IT Service Provider fishbone. may have both Internal Customers and External Customers. See also Type I Service Provider, Type II Service ISO 9000 Provider. A generic term that refers to a number of international Standards and Guidelines for Quality Management Internal Sourcing Systems. See www.iso.org for more information. See also (Service Strategy) Using an Internal Service Provider to ISO. manage IT Services. See also Service Sourcing, Type I Service Provider, Type II Service Provider. ISO 9001 An international Standard for Quality Management International Organization for Systems. See also ISO 9000, Standard. Standardization The International Organization for Standardization (ISO) is ISO/IEC 17799 the world’s largest developer of Standards. ISO is a non- (Continual Service Improvement) ISO Code of Practice for governmental organization that is a network of the Information Security Management. See also Standard.
193. Glossary | 199ISO/IEC 20000 IT Operations ManagementISO Specification and Code of Practice for IT Service (Service Operation) The Function within an IT ServiceManagement. ISO/IEC 20000 is aligned with ITIL Best Provider that performs the daily Activities needed toPractice. manage IT Services and the supporting IT Infrastructure. IT Operations Management includes IT Operations ControlISO/IEC 27001 and Facilities Management.(Service Design) (Continual Service Improvement) ISOSpecification for Information Security Management. The IT Servicecorresponding Code of Practice is ISO/IEC 17799. See also A Service provided to one or more Customers by an ITStandard. Service Provider. An IT Service is based on the use of Information Technology and supports the Customer’sIT Directorate Business Processes. An IT Service is made up from a(Continual Service Improvement) Senior Management combination of people, Processes and technology andwithin a Service Provider, charged with developing and should be defined in a Service Level Agreement.delivering IT services. Most commonly used in UKGovernment departments. IT Service Continuity Management (Service Design) The Process responsible for managingIT Infrastructure Risks that could seriously affect IT Services. ITSCM ensuresAll of the hardware, software, networks, facilities, etc. that that the IT Service Provider can always provide minimumare required to develop, Test, deliver, Monitor, Control or agreed Service Levels, by reducing the Risk to ansupport IT Services. The term IT Infrastructure includes all acceptable level and Planning for the Recovery of ITof the Information Technology but not the associated Services. ITSCM should be designed to support Businesspeople, Processes and documentation. Continuity Management.IT Operations IT Service Continuity Plan(Service Operation) Activities carried out by IT Operations (Service Design) A Plan defining the steps required toControl, including Console Management, Job Scheduling, Recover one or more IT Services. The Plan will also identifyBackup and Restore, and Print and Output Management. IT the triggers for Invocation, people to be involved,Operations is also used as a synonym for Service communications etc. The IT Service Continuity Plan shouldOperation. be part of a Business Continuity Plan.IT Operations Control IT Service Management(Service Operation) The Function responsible for The implementation and management of Quality ITMonitoring and Control of the IT Services and IT Services that meet the needs of the Business. IT ServiceInfrastructure. See also Operations Bridge. Management is performed by IT Service Providers through an appropriate mix of people, Process and Information Technology. See also Service Management.
194. 200 | Glossary IT Service Management Forum Job Scheduling The IT Service Management Forum is an independent (Service Operation) Planning and managing the execution Organization dedicated to promoting a professional of software tasks that are required as part of an IT Service. approach to IT Service Management. The itSMF is a not- Job Scheduling is carried out by IT Operations for-profit membership Organization with representation in Management, and is often automated using software tools many countries around the world (itSMF Chapters). The that run batch or online tasks at specific times of the day, itSMF and its membership contribute to the development week, month or year. of ITIL and associated IT Service Management Standards. See www.itsmf.com for more information. Kano Model (Service Strategy) A Model developed by Noriaki Kano that IT Service Provider is used to help understand Customer preferences. The (Service Strategy) A Service Provider that provides IT Kano Model considers Attributes of an IT Service grouped Services to Internal Customers or External Customers. into areas such as Basic Factors, Excitement Factors, Performance Factors, etc. IT Steering Group A formal group that is responsible for ensuring that Kepner & Tregoe Analysis Business and IT Service Provider Strategies and Plans are (Service Operation) (Continual Service Improvement) A closely aligned. An IT Steering Group includes senior structured approach to Problem solving. The Problem is representatives from the Business and the IT Service analysed in terms of what, where, when and extent. Provider. Possible causes are identified. The most probable cause is tested. The true cause is verified. ITIL A set of Best Practice guidance for IT Service Management. Key Performance Indicator ITIL is owned by the OGC and consists of a series of (Service Design) (Continual Service Improvement) A Metric publications giving guidance on the provision of Quality IT that is used to help manage a Process, IT Service or Services, and on the Processes and facilities needed to Activity. Many Metrics may be measured, but only the support them. See www.itil.co.uk for more information. most important of these are defined as KPIs and used to actively manage and report on the Process, IT Service or Job Description Activity. KPIs should be selected to ensure that Efficiency, A Document that defines the Roles, responsibilities, skills Effectiveness and Cost Effectiveness are all managed. See and knowledge required by a particular person. One Job also Critical Success Factor. Description can include multiple Roles, for example the Roles of Configuration Manager and Change Manager may Knowledge Base be carried out by one person. (Service Transition) A logical database containing the data used by the Service Knowledge Management System.
195. Glossary | 201Knowledge Management The Expanded Incident Lifecycle includes Detect,(Service Transition) The Process responsible for gathering, Respond, Diagnose, Repair, Recover, Restoreanalysing, storing and sharing knowledge and information The Lifecycle of a Server may include: Ordered,within an Organization. The primary purpose of Received, In Test, Live, Disposed etc.Knowledge Management is to improve Efficiency byreducing the need to rediscover knowledge. See also Data- Line of Serviceto-Information-to-Knowledge-to-Wisdom. (Service Strategy) A Core Service or Supporting Service that has multiple Service Level Packages. A line of ServiceKnown Error is managed by a Product Manager and each Service Level(Service Operation) A Problem that has a documented Package is designed to support a particular marketRoot Cause and a Workaround. Known Errors are created segment.and managed throughout their Lifecycle by ProblemManagement. Known Errors may also be identified by LiveDevelopment or Suppliers. (Service Transition) Refers to an IT Service or Configuration Item that is being used to deliver Service to a Customer.Known Error Database(Service Operation) A database containing all Known Error Live EnvironmentRecords. This database is created by Problem Management (Service Transition) A controlled Environment containingand used by Incident and Problem Management. The Live Configuration Items used to deliver IT Services toKnown Error Database is part of the Service Knowledge Customers.Management System. MaintainabilityKnown Error Record (Service Design) A measure of how quickly and Effectively(Service Operation) A Record containing the details of a a Configuration Item or IT Service can be restored toKnown Error. Each Known Error Record documents the normal working after a Failure. Maintainability is oftenLifecycle of a Known Error, including the Status, Root measured and reported as MTRS.Cause and Workaround. In some implementations a Maintainability is also used in the context of Software or ITKnown Error is documented using additional fields in a Service Development to mean ability to be Changed orProblem Record. Repaired easily.Lifecycle Major IncidentThe various stages in the life of an IT Service, (Service Operation) The highest Category of Impact for anConfiguration Item, Incident, Problem, Change etc. The Incident. A Major Incident results in significant disruptionLifecycle defines the Categories for Status and the Status to the Business.transitions that are permitted. For example: The Lifecycle of an Application includes Requirements, Design, Build, Deploy, Operate, Optimize
196. 202 | Glossary Managed Services Market Space (Service Strategy) A perspective on IT Services that (Service Strategy) All opportunities that an IT Service Provider emphasizes the fact that they are managed. The term could exploit to meet business needs of Customers. The Managed Services is also used as a synonym for Market Space identifies the possible IT Services that an IT Outsourced IT Services. Service Provider may wish to consider delivering. Management Information Maturity Information that is used to support decision-making by (Continual Service Improvement) A measure of the managers. Management Information is often generated Reliability, Efficiency and Effectiveness of a Process, automatically by tools supporting the various IT Service Function, Organization etc. The most mature Processes Management Processes. Management Information often and Functions are formally aligned to Business Objectives includes the values of KPIs such as ‘Percentage of Changes and Strategy, and are supported by a framework for leading to Incidents’, or ‘first-time fix rate’. continual improvement. Management of Risk Maturity Level The OGC methodology for managing Risks. M_o_R A named level in a Maturity model such as the Carnegie includes all the Activities required to identify and Control Mellon Capability Maturity Model Integration. the exposure to Risk, which may have an impact on the achievement of an Organization’s Business Objectives. See Mean Time Between Failures www.m-o-r.org for more details. (Service Design) A Metric for measuring and reporting Reliability. MTBF is the average time that a Configuration Management System Item or IT Service can perform its agreed Function without The framework of Policy, Processes and Functions that interruption. This is measured from when the CI or IT ensures an Organization can achieve its Objectives. Service starts working, until it next fails. Manual Workaround Mean Time Between Service Incidents A Workaround that requires manual intervention. Manual (Service Design) A Metric used for measuring and Workaround is also used as the name of a Recovery reporting Reliability. MTBSI is the mean time from when a Option in which The Business Process Operates without System or IT Service fails, until it next fails. MTBSI is equal the use of IT Services. This is a temporary measure and is to MTBF + MTRS. usually combined with another Recovery Option. Mean Time To Repair Marginal Cost The average time taken to repair a Configuration Item or IT (Service Strategy) The Cost of continuing to provide the IT Service after a Failure. MTTR is measured from when the CI Service. Marginal Cost does not include investment already or IT Service fails until it is repaired. MTTR does not include made, for example the cost of developing new software the time required to Recover or Restore. MTTR is sometimes and delivering training. incorrectly used to mean Mean Time to Restore Service.
197. Glossary | 203Mean Time to Restore Service Monitor Control LoopThe average time taken to restore a Configuration Item or (Service Operation) Monitoring the output of a Task,IT Service after a Failure. MTRS is measured from when the Process, IT Service or Configuration Item; comparing thisCI or IT Service fails until it is fully restored and delivering output to a predefined Norm; and taking appropriateits normal functionality. See also Maintainability, Mean action based on this comparison.Time to Repair. MonitoringMetric (Service Operation) Repeated observation of a(Continual Service Improvement) Something that is Configuration Item, IT Service or Process to detect Eventsmeasured and reported to help manage a Process, IT and to ensure that the current status is known.Service or Activity. See also KPI. Near-ShoreMiddleware (Service Strategy) Provision of Services from a country near(Service Design) Software that connects two or more the country where the Customer is based. This can be thesoftware Components or Applications. Middleware is provision of an IT Service, or of supporting Functions suchusually purchased from a Supplier, rather than developed as Service Desk. See also On-shore, Off-shore.within the IT Service Provider. See also Off the Shelf. Net Present ValueMission Statement (Service Strategy) A technique used to help makeThe Mission Statement of an Organization is a short but decisions about Capital Expenditure. NPV compares cashcomplete description of the overall purpose and intentions inflows with cash outflows. Positive NPV indicates that anof that Organization. It states what is to be achieved, but investment is worthwhile. See also Internal Rate of Return,not how this should be done. Return on Investment.Model Notional ChargingA representation of a System, Process, IT Service, (Service Strategy) An approach to Charging for IT Services.Configuration Item etc. that is used to help understand or Charges to Customers are calculated and Customers arepredict future behaviour. informed of the charge, but no money is actually transferred. Notional Charging is sometimes introduced toModelling ensure that Customers are aware of the Costs they incur,A technique that is used to predict the future behaviour of or as a stage during the introduction of real Charging.a System, Process, IT Service, Configuration Item etc.Modelling is commonly used in Financial Management, ObjectiveCapacity Management and Availability Management. The defined purpose or aim of a Process, an Activity or an Organization as a whole. Objectives are usually expressed as measurable targets. The term Objective is also
198. 204 | Glossary informally used to mean a Requirement. See also Operate Outcome. To perform as expected. A Process or Configuration Item is said to Operate if it is delivering the Required outputs. Off the Shelf Operate also means to perform one or more Operations. See Commercial Off the Shelf. For example, to Operate a computer is to do the day-to- day Operations needed for it to perform as expected. Office of Government Commerce OGC owns the ITIL brand (copyright and trademark). OGC Operation is a UK Government department that supports the delivery (Service Operation) Day-to-day management of an IT of the government’s procurement agenda through its Service, System, or other Configuration Item. Operation is work in collaborative procurement and in raising levels of also used to mean any pre-defined Activity or Transaction. procurement skills and capability with departments. It also For example loading a magnetic tape, accepting money at provides support for complex public sector projects. a point of sale, or reading data from a disk drive. Office of Public Sector Information Operational OPSI licenses the Crown Copyright material used in the The lowest of three levels of Planning and delivery ITIL publications. OPSI is a UK Government department (Strategic, Tactical, Operational). Operational Activities that provides online access to UK legislation, licenses the include the day-to-day or short-term Planning or delivery re-use of Crown Copyright material, manages the of a Business Process or IT Service Management Process. Information Fair Trader Scheme, maintains the The term Operational is also a synonym for Live. Government’s Information Asset Register and provides advice and guidance on official publishing and Crown Operational Cost Copyright. Cost resulting from running the IT Services. Often repeating payments. For example staff costs, hardware Off-shore maintenance and electricity (also known as ‘current (Service Strategy) Provision of Services from a location expenditure’ or ‘revenue expenditure’). See also Capital outside the country where the Customer is based, often in Expenditure. a different continent. This can be the provision of an IT Service, or of supporting Functions such as Service Desk. Operational Expenditure See also On-shore, Near-shore. See Operational Cost. On-shore Operational Level Agreement (Service Strategy) Provision of Services from a location (Service Design) (Continual Service Improvement) An within the country where the Customer is based. See also Agreement between an IT Service Provider and another Off-shore, Near-shore. part of the same Organization. An OLA supports the IT Service Provider’s delivery of IT Services to Customers. The OLA defines the goods or Services to be provided and the
199. Glossary | 205responsibilities of both parties. For example there could be Standards Organization or itSMF. The term Organization isan OLA: sometimes used to refer to any entity that has People, Resources and Budgets. For example a Project or Business Between the IT Service Provider and a procurement Unit. department to obtain hardware in agreed times Between the Service Desk and a Support Group to Outcome provide Incident Resolution in agreed times. The result of carrying out an Activity; following a Process;See also Service Level Agreement. delivering an IT Service etc. The term Outcome is used to refer to intended results, as well as to actual results. SeeOperations Bridge also Objective.(Service Operation) A physical location where IT Servicesand IT Infrastructure are monitored and managed. Outsourcing (Service Strategy) Using an External Service Provider toOperations Control manage IT Services. See also Service Sourcing, Type IIISee IT Operations Control. Service Provider.Operations Management OverheadSee IT Operations Management. See Indirect costOpportunity Cost Pain Value Analysis(Service Strategy) A Cost that is used in deciding between (Service Operation) A technique used to help identify theinvestment choices. Opportunity Cost represents the Business Impact of one or more Problems. A formula isrevenue that would have been generated by using the used to calculate Pain Value based on the number ofResources in a different way. For example the Opportunity Users affected, the duration of the Downtime, the ImpactCost of purchasing a new Server may include not carrying on each User, and the cost to the Business (if known).out a Service Improvement activity that the money couldhave been spent on. Opportunity cost analysis is used as Pareto Principlepart of decision-making processes, but is not treated as an (Service Operation) A technique used to prioritizeactual Cost in any financial statement. Activities. The Pareto Principle says that 80% of the value of any activity is created with 20% of the effort. ParetoOptimize Analysis is also used in Problem Management to prioritizeReview, Plan and request Changes, in order to obtain the possible Problem causes for investigation.maximum Efficiency and Effectiveness from a Process,Configuration Item, Application etc. Partnership A relationship between two Organizations that involvesOrganization working closely together for common goals or mutualA company, legal entity or other institution. Examples of benefit. The IT Service Provider should have a PartnershipOrganizations that are not companies include International
200. 206 | Glossary with the Business, and with Third Parties who are critical Pilot to the delivery of IT Services. See also Value Network. (Service Transition) A limited Deployment of an IT Service, a Release or a Process to the Live Environment. A pilot is Passive Monitoring used to reduce Risk and to gain User feedback and (Service Operation) Monitoring of a Configuration Item, an Acceptance. See also Test, Evaluation. IT Service or a Process that relies on an Alert or notification to discover the current status. See also Active Monitoring. Plan A detailed proposal that describes the Activities and Pattern of Business Activity Resources needed to achieve an Objective. For example a (Service Strategy) A Workload profile of one or more Plan to implement a new IT Service or Process. ISO/IEC Business Activities. Patterns of Business Activity are used to 20000 requires a Plan for the management of each IT help the IT Service Provider understand and plan for Service Management Process. different levels of Business Activity. See also User Profile. Plan-Do-Check-Act Percentage utilization (Continual Service Improvement) A four-stage cycle for (Service Design) The amount of time that a Component is Process management, attributed to Edward Deming. Plan- busy over a given period of time. For example, if a CPU is Do-Check-Act is also called the Deming Cycle. busy for 1,800 seconds in a one-hour period, its utilization PLAN: Design or revise Processes that support the IT is 50%. Services. Performance DO: Implement the Plan and manage the Processes. A measure of what is achieved or delivered by a System, CHECK: Measure the Processes and IT Services, compare person, team, Process or IT Service. with Objectives and produce reports. ACT: Plan and implement Changes to improve the Performance Anatomy Processes. (Service Strategy) An approach to Organizational Culture that integrates, and actively manages, leadership and Planned Downtime strategy, people development, technology enablement, (Service Design) Agreed time when an IT Service will not performance management and innovation. be available. Planned Downtime is often used for maintenance, upgrades and testing. See also Change Performance Management Window, Downtime. (Continual Service Improvement) The Process responsible for day-to-day Capacity Management Activities. These Planning include monitoring, threshold detection, Performance An Activity responsible for creating one or more Plans. For analysis and Tuning, and implementing changes related to example, Capacity Planning. Performance and Capacity.
201. Glossary | 207PMBOK PricingA Project management Standard maintained and (Service Strategy) Pricing is the Activity for establishingpublished by the Project Management Institute. PMBOK how much Customers will be Charged.stands for Project Management Body of Knowledge. Seewww.pmi.org for more information. See also PRINCE2. PRINCE2 The standard UK government methodology for ProjectPolicy management. See www.ogc.gov.uk/prince2 for moreFormally documented management expectations and information. See also PMBOK.intentions. Policies are used to direct decisions, and toensure consistent and appropriate development and Priorityimplementation of Processes, Standards, Roles, Activities, IT (Service Transition) (Service Operation) A Category used toInfrastructure etc. identify the relative importance of an Incident, Problem or Change. Priority is based on Impact and Urgency, and isPortable Facility used to identify required times for actions to be taken. For(Service Design) A prefabricated building, or a large example the SLA may state that Priority 2 Incidents mustvehicle, provided by a Third Party and moved to a site be resolved within 12 hours.when needed by an IT Service Continuity Plan. See alsoRecovery Option, Fixed Facility. Proactive Monitoring (Service Operation) Monitoring that looks for patterns ofPost-Implementation Review Events to predict possible future Failures. See also ReactiveA Review that takes place after a Change or a Project has Monitoring.been implemented. A PIR determines if the Change orProject was successful, and identifies opportunities for Proactive Problem Managementimprovement. (Service Operation) Part of the Problem Management Process. The Objective of Proactive Problem ManagementPractice is to identify Problems that might otherwise be missed.A way of working, or a way in which work must be done. Proactive Problem Management analyses Incident Records,Practices can include Activities, Processes, Functions, and uses data collected by other IT Service ManagementStandards and Guidelines. See also Best Practice. Processes to identify trends or significant problems.Prerequisite for Success ProblemAn Activity that needs to be completed, or a condition (Service Operation) A cause of one or more Incidents. Thethat needs to be met, to enable successful implementation cause is not usually known at the time a Problem Recordof a Plan or Process. A PFS is often an output from one is created, and the Problem Management Process isProcess that is a required input to another Process. responsible for further investigation.
202. 208 | Glossary Problem Management several Process Managers for one Process, for example (Service Operation) The Process responsible for managing regional Change Managers or IT Service Continuity the Lifecycle of all Problems. The primary objectives of Managers for each data centre. The Process Manager Role Problem Management are to prevent Incidents from is often assigned to the person who carries out the happening, and to minimize the Impact of Incidents that Process Owner Role, but the two Roles may be separate in cannot be prevented. larger Organizations. Problem Record Process Owner (Service Operation) A Record containing the details of a A Role responsible for ensuring that a Process is Fit for Problem. Each Problem Record documents the Lifecycle of Purpose. The Process Owner’s responsibilities include a single Problem. sponsorship, Design, Change Management and continual improvement of the Process and its Metrics. This Role is Procedure often assigned to the same person who carries out the Process Manager Role, but the two Roles may be separate A Document containing steps that specify how to achieve in larger Organizations. an Activity. Procedures are defined as part of Processes. See also Work Instruction. Production Environment Process See Live Environment. A structured set of Activities designed to accomplish a Profit Centre specific Objective. A Process takes one or more defined inputs and turns them into defined outputs. A Process (Service Strategy) A Business Unit that charges for Services may include any of the Roles, responsibilities, tools and provided. A Profit Centre can be created with the objective management Controls required to reliably deliver the of making a profit, recovering Costs, or running at a loss. outputs. A Process may define Policies, Standards, An IT Service Provider can be run as a Cost Centre or a Guidelines, Activities and Work Instructions if they are Profit Centre. needed. Pro-forma Process Control A template, or example Document containing example The Activity of planning and regulating a Process, with the data that will be replaced with the real values when these Objective of performing the Process in an Effective, are available. Efficient and consistent manner. Programme Process Manager A number of Projects and Activities that are planned and A Role responsible for Operational management of a managed together to achieve an overall set of related Process. The Process Manager’s responsibilities include Objectives and other Outcomes. Planning and coordination of all Activities required to carry out, monitor and report on the Process. There may be
203. Glossary | 209Project Organization is of a suitable Quality to reliably meetA temporary Organization, with people and other Assets Business Objectives or Service Levels. See also ISO 9000.required to achieve an Objective or other Outcome. EachProject has a Lifecycle that typically includes initiation, Quick WinPlanning, execution, Closure etc. Projects are usually (Continual Service Improvement) An improvement Activitymanaged using a formal methodology such as PRINCE2. that is expected to provide a Return on Investment in a short period of time with relatively small Cost and effort.Projected Service Outage See also Pareto Principle.(Service Transition) A Document that identifies the effect ofplanned Changes, maintenance Activities and Test Plans RACIon agreed Service Levels. (Service Design) (Continual Service Improvement) A Model used to help define Roles and Responsibilities. RACI standsPRojects IN Controlled Environments for Responsible, Accountable, Consulted and Informed.See PRINCE2 Reactive MonitoringQualification (Service Operation) Monitoring that takes action in(Service Transition) An Activity that ensures that IT response to an Event. For example submitting a batch jobInfrastructure is appropriate, and correctly configured, to when the previous job completes, or logging an Incidentsupport an Application or IT Service. See also Validation. when an Error occurs. See also Proactive Monitoring.Quality Reciprocal ArrangementThe ability of a product, Service, or Process to provide the (Service Design) A Recovery Option. An agreementintended value. For example, a hardware Component can between two Organizations to share resources in anbe considered to be of high Quality if it performs as emergency. For example, Computer Room space or use ofexpected and delivers the required Reliability. Process a mainframe.Quality also requires an ability to monitor Effectivenessand Efficiency, and to improve them if necessary. See also RecordQuality Management System. A Document containing the results or other output from a Process or Activity. Records are evidence of the fact thatQuality Assurance an activity took place and may be paper or electronic. For(Service Transition) The Process responsible for ensuring example, an Audit report, an Incident Record, or thethat the Quality of a product, Service or Process will minutes of a meeting.provide its intended Value. RecoveryQuality Management System (Service Design) (Service Operation) Returning a(Continual Service Improvement) The set of Processes Configuration Item or an IT Service to a working state.responsible for ensuring that all work carried out by an Recovery of an IT Service often includes recovering data to a known consistent state. After Recovery, further steps may
204. 210 | Glossary be needed before the IT Service can be made available to Relationship the Users (Restoration). A connection or interaction between two people or things. In Business Relationship Management it is the interaction Recovery Option between the IT Service Provider and the Business. In (Service Design) A Strategy for responding to an Configuration Management it is a link between two interruption to Service. Commonly used Strategies are Do Configuration Items that identifies a dependency or Nothing, Manual Workaround, Reciprocal Arrangement, connection between them. For example Applications may Gradual Recovery, Intermediate Recovery, Fast Recovery, be linked to the Servers they run on, IT Services have Immediate Recovery. Recovery Options may make use of many links to all the CIs that contribute to that IT Service. dedicated facilities, or Third Party facilities shared by multiple Businesses. Relationship Processes The ISO/IEC 20000 Process group that includes Business Recovery Point Objective Relationship Management and Supplier Management. (Service Operation) The maximum amount of data that may be lost when Service is Restored after an interruption. Release Recovery Point Objective is expressed as a length of time (Service Transition) A collection of hardware, software, before the Failure. For example a Recovery Point Objective documentation, Processes or other Components required of one day may be supported by daily Backups, and up to to implement one or more approved Changes to IT 24 hours of data may be lost. Recovery Point Objectives Services. The contents of each Release are managed, for each IT Service should be negotiated, agreed and tested and deployed as a single entity. documented, and used as requirements for Service Design and IT Service Continuity Plans. Release and Deployment Management (Service Transition) The Process responsible for both Recovery Time Objective Release Management and Deployment. (Service Operation) The maximum time allowed for recovery of an IT Service following an interruption. The Release Identification Service Level to be provided may be less than normal (Service Transition) A naming convention used to uniquely Service Level Targets. Recovery Time Objectives for each IT identify a Release. The Release Identification typically Service should be negotiated, agreed and documented. includes a reference to the Configuration Item and a See also Business Impact Analysis. version number. For example Microsoft Office 2003 SR2. Redundancy Release Management See Fault Tolerance. (Service Transition) The Process responsible for Planning, The term Redundant also has a generic meaning of scheduling and controlling the movement of Releases to obsolete, or no longer needed. Test and Live Environments. The primary Objective of Release Management is to ensure that the integrity of the Live Environment is protected and that the correct
205. Glossary | 211Components are released. Release Management is part of Remediationthe Release and Deployment Management Process. (Service Transition) Recovery to a known state after a failed Change or Release.Release ProcessThe name used by ISO/IEC 20000 for the Process group Repairthat includes Release Management. This group does not (Service Operation) The replacement or correction of ainclude any other Processes. failed Configuration Item.Release Process is also used as a synonym for ReleaseManagement Process. Request for Change (Service Transition) A formal proposal for a Change to beRelease Record made. An RFC includes details of the proposed Change,(Service Transition) A Record in the CMDB that defines the and may be recorded on paper or electronically. The termcontent of a Release. A Release Record has Relationships RFC is often misused to mean a Change Record, or thewith all Configuration Items that are affected by the Change itself.Release. Request FulfilmentRelease Unit (Service Operation) The Process responsible for managing(Service Transition) Components of an IT Service that are the Lifecycle of all Service Requests.normally Released together. A Release Unit typicallyincludes sufficient components to perform a useful RequirementFunction. For example one Release Unit could be a (Service Design) A formal statement of what is needed. ForDesktop PC, including Hardware, Software, Licences, example, a Service Level Requirement, a ProjectDocumentation etc. A different Release Unit may be the Requirement or the required Deliverables for a Process. Seecomplete Payroll Application, including IT Operations also Statement of requirements.Procedures and user training. ResilienceRelease Window (Service Design) The ability of a Configuration Item or ITSee Change Window. Service to resist Failure or to Recover quickly following a Failure. For example an armoured cable will resist failureReliability when put under stress. See also Fault Tolerance.(Service Design) (Continual Service Improvement) Ameasure of how long a Configuration Item or IT Service Resolutioncan perform its agreed Function without interruption. (Service Operation) Action taken to repair the Root CauseUsually measured as MTBF or MTBSI. The term Reliability of an Incident or Problem, or to implement a Workaround.can also be used to state how likely it is that a Process, In ISO/IEC 20000, Resolution Processes is the ProcessFunction etc. will deliver its required outputs. See also group that includes Incident and Problem Management.Availability.
206. 212 | Glossary Resolution Processes Return on Investment (ROI) The ISO/IEC 20000 Process group that includes Incident (Service Strategy) (Continual Service Improvement) A Management and Problem Management. measurement of the expected benefit of an investment. In the simplest sense it is the net profit of an investment Resource divided by the net worth of the assets invested. See also (Service Strategy) A generic term that includes IT Net Present Value, Value on Investment. Infrastructure, people, money or anything else that might help to deliver an IT Service. Resources are considered to Return to Normal be Assets of an Organization. See also Capability, Service (Service Design) The phase of an IT Service Continuity Plan Asset. during which full normal operations are resumed. For example, if an alternative data centre has been in use, Response Time then this phase will bring the primary data centre back A measure of the time taken to complete an Operation or into operation, and restore the ability to invoke IT Service Transaction. Used in Capacity Management as a measure Continuity Plans again. of IT Infrastructure Performance, and in Incident Management as a measure of the time taken to answer Review the phone, or to start Diagnosis. An evaluation of a Change, Problem, Process, Project etc. Reviews are typically carried out at predefined points in Responsiveness the Lifecycle, and especially after Closure. The purpose of A measurement of the time taken to respond to a Review is to ensure that all Deliverables have been something. This could be Response Time of a Transaction, provided, and to identify opportunities for improvement. or the speed with which an IT Service Provider responds See also Post-Implementation Review. to an Incident or Request for Change etc. Rights Restoration of Service (Service Operation) Entitlements, or permissions, granted See Restore. to a User or Role. For example the Right to modify particular data, or to authorize a Change. Restore Risk (Service Operation) Taking action to return an IT Service to the Users after Repair and Recovery from an Incident. This A possible event that could cause harm or loss, or affect is the primary Objective of Incident Management. the ability to achieve Objectives. A Risk is measured by the probability of a Threat, the Vulnerability of the Asset to Retire that Threat, and the Impact it would have if it occurred. (Service Transition) Permanent removal of an IT Service, or Risk Assessment other Configuration Item, from the Live Environment. Retired is a stage in the Lifecycle of many Configuration The initial steps of Risk Management. Analysing the value Items. of Assets to the business, identifying Threats to those
207. Glossary | 213Assets, and evaluating how Vulnerable each Asset is to Scopethose Threats. Risk Assessment can be quantitative (based The boundary, or extent, to which a Process, Procedure,on numerical data) or qualitative. Certification, Contract etc. applies. For example the Scope of Change Management may include all Live IT ServicesRisk Management and related Configuration Items, the Scope of an ISO/IECThe Process responsible for identifying, assessing and 20000 Certificate may include all IT Services delivered outcontrolling Risks. See also Risk Assessment. of a named data centre.Role Second-line SupportA set of responsibilities, Activities and authorities granted (Service Operation) The second level in a hierarchy ofto a person or team. A Role is defined in a Process. One Support Groups involved in the resolution of Incidents andperson or team may have multiple Roles, for example the investigation of Problems. Each level contains moreRoles of Configuration Manager and Change Manager may specialist skills, or has more time or other resources.be carried out by a single person. SecurityRollout See Information Security Management.(Service Transition) See Deployment.Most often used to refer to complex or phased Security ManagementDeployments or Deployments to multiple locations. See Information Security Management.Root Cause Security Policy(Service Operation) The underlying or original cause of an See Information Security Policy.Incident or Problem. Separation of ConcernsRoot Cause Analysis (Service Strategy) An approach to Designing a solution or(Service Operation) An Activity that identifies the Root IT Service that divides the problem into pieces that can beCause of an Incident or Problem. RCA typically solved independently. This approach separates ‘what’ is toconcentrates on IT Infrastructure failures. be done from ‘how’ it is to be done.Running Costs ServerSee Operational Costs. (Service Operation) A computer that is connected to a network and provides software Functions that are used byScalability other Computers.The ability of an IT Service, Process, Configuration Item etc.to perform its agreed Function when the Workload or ServiceScope changes. Delivering something of value to a Customer that is not goods (physical things with material value). Examples of
208. 214 | Glossary Services include banking, legal support or e-mail. Service is available for Deployment. The Service Catalogue is the also used as a synonym for IT Service. only part of the Service Portfolio published to Customers, and is used to support the sale and delivery of IT Services. Service Acceptance Criteria The Service Catalogue includes information about (Service Transition) A set of criteria used to ensure that an deliverables, prices, contact points, ordering and request IT Service meets its functionality and Quality Requirements Processes. See also Contract Portfolio. and that the IT Service Provider is ready to Operate the new IT Service when it has been Deployed. See also Service Continuity Management Acceptance. See IT Service Continuity Management. Service Analytics Service Contract (Service Strategy) A technique used in the assessment of (Service Strategy) A Contract to deliver one or more IT the Business Impact of Incidents. Service Analytics Models Services. The term Service Contract is also used to mean the dependencies between Configuration Items, and the any Agreement to deliver IT Services, whether this is a dependencies of IT Services on Configuration Items. legal Contract or an SLA. See also Contract Portfolio. Service Asset Service Culture Any Capability or Resource of a Service Provider. See also A Customer-oriented Culture. The major Objectives of a Asset. Service Culture are Customer satisfaction and helping Customers to achieve their Business Objectives. Service Asset and Configuration Management Service Design (Service Transition) The Process responsible for both (Service Design) A stage in the Lifecycle of an IT Service. Configuration Management and Asset Management. Service Design includes a number of Processes and Functions and is the title of one of the Core ITIL Service Capacity Management publications. See also Design. (Service Design) (Continual Service Improvement) The Activity responsible for understanding the Performance Service Design Package and Capacity of IT Services. The Resources used by each IT (Service Design) Document(s) defining all aspects of an IT Service and the pattern of usage over time are collected, Service and its Requirements through each stage of its recorded, and analysed for use in the Capacity Plan. See Lifecycle. A Service Design Package is produced for each also Business Capacity Management, Resource Capacity new IT Service, major Change or IT Service Retirement. Management. Service Desk Service Catalogue (Service Operation) The Single Point of Contact between (Service Design) A database or structured Document with the Service Provider and the Users. A typical Service Desk information about all Live IT Services, including those manages Incidents and Service Requests, and also handles communication with the Users.
209. Glossary | 215Service Failure Analysis the IT Service Provider and the Customer. A single SLA(Service Design) An Activity that identifies underlying may cover multiple IT Services or multiple Customers. Seecauses of one or more IT Service interruptions. SFA also Operational Level Agreement.identifies opportunities to improve the IT Service Provider’sProcesses and tools, and not just the IT Infrastructure. SFA Service Level Managementis a time-constrained, project-like activity, rather than an (Service Design) (Continual Service Improvement) Theongoing process of analysis. Process responsible for negotiating Service Level Agreements, and ensuring that these are met. SLM isService Hours responsible for ensuring that all IT Service Management(Service Design) (Continual Service Improvement) An Processes, Operational Level Agreements andagreed time period when a particular IT Service should be Underpinning Contracts are appropriate for the agreedavailable. For example, ‘Monday-Friday 08:00 to 17:00 Service Level Targets. SLM monitors and reports on Serviceexcept public holidays’. Service Hours should be defined in Levels, and holds regular Customer reviews.a Service Level Agreement. Service Level PackageService Improvement Plan (Service Strategy) A defined level of Utility and Warranty(Continual Service Improvement) A formal Plan to for a particular Service Package. Each SLP is designed toimplement improvements to a Process or IT Service. meet the needs of a particular Pattern of Business Activity. See also Line of Service.Service Knowledge Management System Service Level Requirement(Service Transition) A set of tools and databases that areused to manage knowledge and information. The SMKS (Service Design) (Continual Service Improvement) Aincludes the Configuration Management System, as well as Customer Requirement for an aspect of an IT Service. SLRsother tools and databases. The SKMS stores, manages, are based on Business Objectives and are used toupdates and presents all information that an IT Service negotiate agreed Service Level Targets.Provider needs to manage the full Lifecycle of IT Services. Service Level TargetService Level (Service Design) (Continual Service Improvement) AMeasured and reported achievement against one or more commitment that is documented in a Service LevelService Level Targets. The term Service Level is sometimes Agreement. Service Level Targets are based on Serviceused informally to mean Service Level Target. Level Requirements, and are needed to ensure that the IT Service design is Fit for Purpose. Service Level TargetsService Level Agreement should be measurable, and are usually based on KPIs.(Service Design) (Continual Service Improvement) An Service Maintenance ObjectiveAgreement between an IT Service Provider and aCustomer. The SLA describes the IT Service, documents (Service Operation) The expected time that a ConfigurationService Level Targets and specifies the responsibilities of Item will be unavailable due to planned maintenance Activity.
210. 216 | Glossary Service Management Package includes a Service Level Package and one or more Service Management is a set of specialized organizational Core Services and Supporting Services. capabilities for providing value to Customers in the form of services. Service Pipeline (Service Strategy) A database or structured Document Service Management Lifecycle listing all IT Services that are under consideration or An approach to IT Service Management that emphasizes Development, but are not yet available to Customers. The the importance of coordination and Control across the Service Pipeline provides a Business view of possible future various Functions, Processes and Systems necessary to IT Services and is part of the Service Portfolio that is not manage the full Lifecycle of IT Services. The Service normally published to Customers. Management Lifecycle approach considers the Strategy, Design, Transition, Operation and Continuous Service Portfolio Improvement of IT Services. (Service Strategy) The complete set of Services that are managed by a Service Provider. The Service Portfolio is Service Manager used to manage the entire Lifecycle of all Services, and A manager who is responsible for managing the end-to- includes three Categories: Service Pipeline (proposed or in end Lifecycle of one or more IT Services. The term Service Development); Service Catalogue (Live or available for Manager is also used to mean any manager within the IT Deployment); and Retired Services. See also Service Service Provider. Most commonly used to refer to a Portfolio Management, Contract Portfolio. Business Relationship Manager, a Process Manager, an Account Manager or a senior manager with responsibility Service Portfolio Management for IT Services overall. (Service Strategy) The Process responsible for managing the Service Portfolio. Service Portfolio Management Service Operation considers Services in terms of the Business value that they (Service Operation) A stage in the Lifecycle of an IT provide. Service. Service Operation includes a number of Processes and Functions and is the title of one of the Core ITIL Service Potential publications. See also Operation. (Service Strategy) The total possible value of the overall Capabilities and Resources of the IT Service Provider. Service Owner (Continual Service Improvement) A Role that is Service Provider accountable for the delivery of a specific IT Service. (Service Strategy) An Organization supplying Services to one or more Internal Customers or External Customers. Service Package Service Provider is often used as an abbreviation for IT (Service Strategy) A detailed description of an IT Service Service Provider. See also Type I Service Provider, Type II that is available to be delivered to Customers. A Service Service Provider, Type III Service Provider.
211. Glossary | 217Service Provider Interface Multi-vendor Sourcing – Prime, Consortium or Selective(Service Strategy) An interface between the IT Service Outsourcing using Type III Service. Providers.Provider and a User, Customer, Business Process or aSupplier. Analysis of Service Provider Interfaces helps to Service Strategycoordinate end-to-end management of IT Services. (Service Strategy) The title of one of the Core ITIL publications. Service Strategy establishes an overallService Provisioning Optimization Strategy for IT Services and for IT Service Management.(Service Strategy) Analysing the finances and constraints ofan IT Service to decide if alternative approaches to service Service Transitiondelivery might reduce Costs or improve Quality. (Service Transition) A stage in the Lifecycle of an IT Service. Service Transition includes a number of Processes andService Reporting Functions and is the title of one of the Core ITIL(Continual Service Improvement) The Process responsible publications. See also Transition.for producing and delivering reports of achievement andtrends against Service Levels. Service Reporting should Service Utilityagree the format, content and frequency of reports with (Service Strategy) The Functionality of an IT Service fromCustomers. the Customer’s perspective. The Business value of an IT Service is created by the combination of Service UtilityService Request (what the Service does) and Service Warranty (how well it(Service Operation) A request from a User for information, does it). See also Utility.or advice, or for a Standard Change or for Access to an ITService. For example to reset a password, or to provide Service Validation and Testingstandard IT Services for a new User. Service Requests are (Service Transition) The Process responsible for Validationusually handled by a Service Desk, and do not require an and Testing of a new or Changed IT Service. ServiceRFC to be submitted. Validation and Testing ensures that the IT Service matches its Design Specification and will meet the needs of theService Sourcing Business.(Service Strategy) The Strategy and approach for decidingwhether to provide a Service internally or to outsource it Service Valuationto an External Service Provider. Service Sourcing also (Service Strategy) A measurement of the total Cost ofmeans the execution of this Strategy. delivering an IT Service, and the total value to the Business of that IT Service. Service Valuation is used to help theService Sourcing includes: Business and the IT Service Provider agree on the value of Internal Sourcing – Internal or Shared Services using the IT Service. Type I or Type II Service Providers Traditional Sourcing – Full Service Outsourcing using a Service Warranty Type III Service Provider (Service Strategy) Assurance that an IT Service will meet agreed Requirements. This may be a formal Agreement
212. 218 | Glossary such as a Service Level Agreement or Contract, or may be Single Point of Failure a marketing message or brand image. The Business value (Service Design) Any Configuration Item that can cause an of an IT Service is created by the combination of Service Incident when it fails, and for which a Countermeasure has Utility (what the Service does) and Service Warranty (how not been implemented. A SPOF may be a person, or a well it does it). See also Warranty. step in a Process or Activity, as well as a Component of the IT Infrastructure. See also Failure. Serviceability (Service Design) (Continual Service Improvement) The SLAM Chart ability of a Third-Party Supplier to meet the terms of its (Continual Service Improvement) A Service Level Contract. This Contract will include agreed levels of Agreement Monitoring Chart is used to help monitor and Reliability, Maintainability or Availability for a Configuration report achievements against Service Level Targets. A SLAM Item. Chart is typically colour coded to show whether each agreed Service Level Target has been met, missed, or Shift nearly missed during each of the previous 12 months. (Service Operation) A group or team of people who carry out a specific Role for a fixed period of time. For example SMART there could be four shifts of IT Operations Control (Service Design) (Continual Service Improvement) An personnel to support an IT Service that is used 24 hours acronym for helping to remember that targets in Service a day. Level Agreements and Project Plans should be Specific, Measurable, Achievable, Relevant and Timely. Simulation modelling (Service Design) (Continual Service Improvement) A Snapshot technique that creates a detailed model to predict the (Service Transition) The current state of a Configuration as behaviour of a Configuration Item or IT Service. Simulation captured by a discovery tool. Also used as a synonym for models can be very accurate but are expensive and time Benchmark. See also Baseline. consuming to create. A simulation model is often created by using the actual Configuration Items that are being Source modelled, with artificial Workloads or Transactions. They See Service Sourcing. are used in Capacity Management when accurate results are important. A simulation model is sometimes called a Performance Benchmark. Specification A formal definition of Requirements. A Specification may Single Point of Contact be used to define technical or Operational Requirements, and may be internal or external. Many public Standards (Service Operation) Providing a single consistent way to consist of a Code of Practice and a Specification. The communicate with an Organization or Business Unit. For Specification defines the Standard against which an example, a Single Point of Contact for an IT Service Organization can be Audited. Provider is usually called a Service Desk.
213. Glossary | 219Stakeholder Statement of requirementsAll people who have an interest in an Organization, (Service Design) A Document containing all RequirementsProject, IT Service etc. Stakeholders may be interested in for a product purchase, or a new or changed IT Service.the Activities, targets, Resources or Deliverables. See also Terms of Reference.Stakeholders may include Customers, Partners, employees,shareholders, owners etc. Status The name of a required field in many types of Record. ItStandard shows the current stage in the Lifecycle of the associatedA mandatory Requirement. Examples include ISO/IEC Configuration Item, Incident, Problem etc.20000 (an international Standard), an internal securitystandard for Unix configuration, or a government standard Status Accountingfor how financial Records should be maintained. The term (Service Transition) The Activity responsible for recordingStandard is also used to refer to a Code of Practice or and reporting the Lifecycle of each Configuration Item.Specification published by a Standards Organization suchas ISO or BSI. See also Guideline. Storage Management (Service Operation) The Process responsible for managingStandard Change the storage and maintenance of data throughout its(Service Transition) A pre-approved Change that is low Lifecycle.Risk, relatively common and follows a Procedure or WorkInstruction. For example, password reset or provision of Strategicstandard equipment to a new employee. RFCs are not (Service Strategy) The highest of three levels of Planningrequired to implement a Standard Change, and they are and delivery (Strategic, Tactical, Operational). Strategiclogged and tracked using a different mechanism, such as a Activities include Objective setting and long-term PlanningService Request. See also Change Model. to achieve the overall Vision.Standard Operating Procedures Strategy(Service Operation) Procedures used by IT Operations (Service Strategy) A Strategic Plan designed to achieveManagement. defined Objectives.Standby Super User(Service Design) Used to refer to Resources that are not (Service Operation) A User who helps other Users, andrequired to deliver the Live IT Services, but are available to assists in communication with the Service Desk or othersupport IT Service Continuity Plans. For example a Standby parts of the IT Service Provider. Super Users typicallydata centre may be maintained to support Hot Standby, provide support for minor Incidents and training.Warm Standby or Cold Standby arrangements.
214. 220 | Glossary Supplier Hours should be defined in a Service Level Agreement, (Service Strategy) (Service Design) A Third Party and may be different from Service Hours. For example, responsible for supplying goods or Services that are Service Hours may be 24 hours a day, but the Support required to deliver IT services. Examples of suppliers Hours may be 07:00 to 19:00. include commodity hardware and software vendors, network and telecom providers, and outsourcing Supporting Service Organizations. See also Underpinning Contract, Supply (Service Strategy) A Service that enables or enhances a Chain. Core Service. For example, a Directory Service or a Backup Service. See also Service Package. Supplier and Contract Database (Service Design) A database or structured Document used SWOT Analysis to manage Supplier Contracts throughout their Lifecycle. (Continual Service Improvement) A technique that reviews The SCD contains key Attributes of all Contracts with and analyses the internal strengths and weaknesses of an Suppliers, and should be part of the SMKS. Organization and of the external opportunities and threats that it faces. SWOT stands for Strengths, Weaknesses, Supplier Management Opportunities and Threats. (Service Design) The Process responsible for ensuring that all Contracts with Suppliers support the needs of the System Business, and that all Suppliers meet their contractual A number of related things that work together to achieve commitments. an overall Objective. For example: A computer System including hardware, software and Supply Chain Applications (Service Strategy) The Activities in a Value Chain carried A management System, including multiple Processes out by Suppliers. A Supply Chain typically involves that are planned and managed together. For example, multiple Suppliers, each adding value to the product or a Quality Management System Service. A Database Management System or Operating System that includes many software modules that are Support Group designed to perform a set of related Functions. (Service Operation) A group of people with technical skills. Support Groups provide the Technical Support needed by System Management all of the IT Service Management Processes. See also The part of IT Service Management that focuses on the Technical Management. management of IT Infrastructure rather than Process. Support Hours Tactical (Service Design) (Service Operation) The times or hours The middle of three levels of Planning and delivery when support is available to the Users. Typically these are (Strategic, Tactical, Operational). Tactical Activities include the hours when the Service Desk is available. Support
215. Glossary | 221the medium-term Plans required to achieve specific Terms of ReferenceObjectives, typically over a period of weeks to months. (Service Design) A Document specifying the Requirements, Scope, Deliverables, Resources and schedule for a ProjectTag or Activity.(Service Strategy) A short code used to identify a Category.For example tags EC1, EC2, EC3 etc. might be used to Testidentify different Customer outcomes when analysing and (Service Transition) An Activity that verifies that acomparing Strategies. The term Tag is also used to refer to Configuration Item, IT Service, Process etc. meets itsthe activity of assigning Tags to things. Specification or agreed Requirements. See also Service Validation and Testing, Acceptance.Technical Management(Service Operation) The Function responsible for providing Test Environmenttechnical skills in support of IT Services and management (Service Transition) A controlled Environment used to Testof the IT Infrastructure. Technical Management defines the Configuration Items, Builds, IT Services, Processes etc.Roles of Support Groups, as well as the tools, Processesand Procedures required. Third Party A person, group or Business that is not part of the ServiceTechnical Observation Level Agreement for an IT Service, but is required to(Continual Service Improvement) A technique used in ensure successful delivery of that IT Service. For example, aService Improvement, Problem investigation and