The document discusses software requirements analysis and specification. It emphasizes that identifying requirements is critical but difficult, especially for large problems. The requirements phase aims to translate user needs into a formal Software Requirements Specification (SRS) document. A good SRS is important for developing high-quality software by reducing errors and costs. It establishes agreement between users and developers.
The systematic use of proven principles, techniques ,languages and tools for the cost-effective analysis ,documentation and on-going evolution of user needs and the external behavior of a system to satisfy those user needs.
Requirement Elicitation
Facilitated Application Specification Technique(FAST)
Quality Function Deployment
USE-CASES
This document provides an overview of object-oriented analysis and design. It defines key terms and concepts in object-oriented modeling like use cases, class diagrams, states, sequences. It describes developing requirements models using use cases and class diagrams. It also explains modeling object behavior through state and sequence diagrams and transitioning analysis models to design.
In this advanced business analysis training session, you will learn Requirement Elicitation. Topics covered in this session are:
• What is Elicitation?
• The elicitation methodology
• The stakeholder connection
• Stakeholder Analysis
• Brainstorming
• One-to-One Interview
• Group Interview
• Document Analysis
• Focus Group
• Interface Analysis
• Observation/Social Analysis
• Prototyping
• Use case and scenarios
• Requirements reuse
• Pre-Project Activity
• Request for Proposal
For more information, click here: https://www.mindsmapped.com/courses/business-analysis/advanced-business-analyst-training/
The document discusses software requirements and requirements engineering. It introduces concepts like user requirements, system requirements, functional requirements, and non-functional requirements. It explains how requirements can be organized in a requirements document and the different types of stakeholders who read requirements. The document also discusses challenges in writing requirements precisely and provides examples of requirements specification for a library system called LIBSYS.
The document discusses requirements analysis for software engineering projects. It describes requirements analysis as bridging system requirements and software design by providing models of system information, functions, and behavior. The objectives of analysis are identified as identifying customer needs, evaluating feasibility, allocating functions, and establishing schedules and constraints. Common analysis techniques discussed include interviews, use cases, prototyping, and specification documentation.
Object oriented analysis emphasizes investigating the problem domain to identify relevant objects and their relationships. The key goals are to define relevant classes and their attributes, operations, relationships, and behaviors through iterative refinement. Various analysis methods take different approaches, but generally involve use case modeling, class modeling, and behavior modeling.
Formal Specification in Software Engineering SE9koolkampus
This document discusses formal specification techniques for software. It describes algebraic techniques for specifying interfaces as abstract data types and model-based techniques for specifying system behavior. Algebraic specifications define operations and their relationships, while model-based specifications represent the system state using mathematical constructs like sets and sequences. Formal specification finds errors earlier and reduces rework, though it requires more upfront effort. The document also provides an example of formally specifying an air traffic control system and insulin pump.
The systematic use of proven principles, techniques ,languages and tools for the cost-effective analysis ,documentation and on-going evolution of user needs and the external behavior of a system to satisfy those user needs.
Requirement Elicitation
Facilitated Application Specification Technique(FAST)
Quality Function Deployment
USE-CASES
This document provides an overview of object-oriented analysis and design. It defines key terms and concepts in object-oriented modeling like use cases, class diagrams, states, sequences. It describes developing requirements models using use cases and class diagrams. It also explains modeling object behavior through state and sequence diagrams and transitioning analysis models to design.
In this advanced business analysis training session, you will learn Requirement Elicitation. Topics covered in this session are:
• What is Elicitation?
• The elicitation methodology
• The stakeholder connection
• Stakeholder Analysis
• Brainstorming
• One-to-One Interview
• Group Interview
• Document Analysis
• Focus Group
• Interface Analysis
• Observation/Social Analysis
• Prototyping
• Use case and scenarios
• Requirements reuse
• Pre-Project Activity
• Request for Proposal
For more information, click here: https://www.mindsmapped.com/courses/business-analysis/advanced-business-analyst-training/
The document discusses software requirements and requirements engineering. It introduces concepts like user requirements, system requirements, functional requirements, and non-functional requirements. It explains how requirements can be organized in a requirements document and the different types of stakeholders who read requirements. The document also discusses challenges in writing requirements precisely and provides examples of requirements specification for a library system called LIBSYS.
The document discusses requirements analysis for software engineering projects. It describes requirements analysis as bridging system requirements and software design by providing models of system information, functions, and behavior. The objectives of analysis are identified as identifying customer needs, evaluating feasibility, allocating functions, and establishing schedules and constraints. Common analysis techniques discussed include interviews, use cases, prototyping, and specification documentation.
Object oriented analysis emphasizes investigating the problem domain to identify relevant objects and their relationships. The key goals are to define relevant classes and their attributes, operations, relationships, and behaviors through iterative refinement. Various analysis methods take different approaches, but generally involve use case modeling, class modeling, and behavior modeling.
Formal Specification in Software Engineering SE9koolkampus
This document discusses formal specification techniques for software. It describes algebraic techniques for specifying interfaces as abstract data types and model-based techniques for specifying system behavior. Algebraic specifications define operations and their relationships, while model-based specifications represent the system state using mathematical constructs like sets and sequences. Formal specification finds errors earlier and reduces rework, though it requires more upfront effort. The document also provides an example of formally specifying an air traffic control system and insulin pump.
This document provides an overview of quality management in software engineering. It discusses software quality, standards, reviews and inspections, as well as software measurement and metrics. The key points covered include establishing an organizational framework for quality management, applying specific quality processes and standards at the project level, and conducting independent reviews to ensure compliance. Software metrics can help quantify attributes and identify anomalous components, but meaningful relationships between internal metrics and external quality attributes can be difficult to establish.
The document discusses verification and validation (V&V) in software engineering. It defines verification as ensuring a product is built correctly, and validation as ensuring the right product is built. V&V aims to discover defects and assess if a system is usable. Static and dynamic verification methods are covered, including inspections, testing, and automated analysis. The document outlines V&V goals, the debugging process, V-model development, test planning, and inspection techniques.
Maintenance involves keeping software or assets in working condition. There are four main types of maintenance: corrective, adaptive, preventive, and perfective. Maintenance is needed to fix problems, adapt to new environments, prevent issues, and improve performance. While necessary, maintenance is costly due to the work required to modify existing software. Efforts like designing for change and documentation can help reduce these costs. Overall, maintenance plays a critical role in maximizing the usefulness of software over its lifetime.
Software Requirement Specification is a most important topic asked in exams and for presentations in B.Tech comp. engg. This presentation contains all the important topic and deep knowledge of SRS.It includes definition, scope, role, how to write srs, template and template description. It tells how to build SRS and also includes examples for ease.
This affects the quality of software and increases the production cost of ... effectiveness of every method, it is useful to select the particular elicitation
http://www.imran.xyz
Software maintenance involves modifying software after delivery to correct faults, improve performance, or adapt to changes. It aims to enhance understandability and modifiability. Key activities that improve maintainability are establishing standards, high-quality design and documentation, and configuration management to track changes. Successful maintenance requires managerial processes like change control boards to review requests and quality assurance to validate changes.
This document discusses sockets programming in Java. It covers server sockets, which listen for incoming client connections, and client sockets, which connect to servers. It describes how to create server and client sockets in Java using the ServerSocket and Socket classes. Examples are provided of simple Java programs to implement a TCP/IP server and client using sockets.
Software Requirements in Software Engineering SE5koolkampus
The document introduces software requirements and describes how they are used to define what a system should do. It explains that requirements can be functional or non-functional, and discusses how requirements are organized in documents. Requirements describe the services and constraints for the system from the perspectives of users and developers.
Chapter07 determining system requirementsDhani Ahmad
This document discusses various methods for determining system requirements, including interviews, questionnaires, observation, document analysis, Joint Application Design (JAD), prototyping, and business process reengineering (BPR). Interviews can use open-ended or close-ended questions, and preparation is important. Questionnaires must be carefully designed and can include both open-ended and close-ended questions. JAD brings together key stakeholders to simultaneously collect requirements. Prototyping converts early requirements into a working system for user feedback. BPR aims to radically improve processes through reorganization and leveraging disruptive technologies.
The document provides an overview of several transport layer protocols and concepts:
- TCP is a connection-oriented protocol that provides reliable, ordered delivery through the use of acknowledgments, flow control, and error control. UDP is a simpler connectionless protocol.
- Sockets provide an interface between applications and the network, allowing applications to build distributed client-server systems.
- Congestion control is important to prevent network congestion and ensure fair resource sharing between flows. TCP uses end-to-end congestion control while some protocols use network feedback.
- RTP and RTCP are used for real-time media delivery over UDP, providing sequencing, timing information, and quality monitoring without guarantees.
- SCT
The document discusses software reuse and design for reuse. It covers the benefits of reuse including increased dependability and accelerated development. It also discusses potential problems like increased maintenance costs. The document then covers four layers of reuse - system, architecture, design, and implementation. It provides examples and approaches to support reuse at each level, including design patterns, object orientation principles, and component-based development.
This ppt covers the following
A strategic approach to testing
Test strategies for conventional software
Test strategies for object-oriented software
Validation testing
System testing
The art of debugging
The document discusses database design and the design process. It explains that database design involves determining the logical structure of tables and relationships between data elements. The design process consists of steps like determining relationships between data, dividing information into tables, specifying primary keys, and applying normalization rules. The document also covers entity-relationship diagrams and designing inputs and outputs, including input controls and designing report formats.
This document discusses various techniques for estimating software costs:
1. Expert judgment relies on experienced people's assessments but can be unreliable due to biases. The Delphi technique improves expert judgment by anonymously aggregating estimates over multiple rounds.
2. Work breakdown structures break projects down into components to estimate costs bottom-up. The COCOMO model also estimates bottom-up using algorithmic formulas adjusted by multipliers for attributes.
3. COCOMO is demonstrated through an example estimating effort of 191 person-months and a 13 month schedule for a 30,000 line embedded software project with high reliability requirements.
Structured Vs, Object Oriented Analysis and DesignMotaz Saad
This document discusses structured vs object-oriented analysis and design (SAD vs OOAD) for software development. It outlines the phases and modeling techniques used in SAD like data flow diagrams, decision tables, and entity relationship diagrams. It also outlines the phases and modeling techniques used in OOAD like use cases, class diagrams, sequence diagrams, and state machine diagrams. The document compares key differences between SAD and OOAD, discusses textbooks on software engineering and UML, and references papers on using UML in practice and evaluating the impact and costs/benefits of UML in software maintenance.
In this Business Analysis training session, you will learn about Requirement Elicitation Techniques. Topics covered in this session are:
• Requirements Engineering
• Project Scope
• Landscape of Requirements
• Properties of Requirements
• Types of Requirements
• Stakeholder
• Requirements Elicitation
• Techniques
For more information, click here: https://www.mindsmapped.com/courses/business-analysis/become-a-business-analyst-with-hands-on-practice/
The document discusses use case diagrams in UML modeling. It defines key components of use case diagrams including use cases, actors, the system boundary, and relationships like include, extend, and generalization. It provides examples of how to construct a use case diagram based on system functions and user goals. Specific use case diagram examples shown include an online ordering system and a vending machine.
The document discusses component-level design which occurs after architectural design. It aims to create a design model from analysis and architectural models. Component-level design can be represented using graphical, tabular, or text-based notations. The key aspects covered include:
- Defining a software component as a modular building block with interfaces and collaboration
- Designing class-based components following principles like open-closed and dependency inversion
- Guidelines for high cohesion and low coupling in components
- Designing conventional components using notations like sequence, if-then-else, and tabular representations
The document discusses key concepts in design engineering for software. It covers principles like abstraction, refinement, modularity, architecture, and information hiding that are important for developing high quality software. It emphasizes that software design is an iterative process of translating requirements into lower levels of abstraction until implementation. The goals of design are to implement all requirements, provide an understandable guide for developers and testers, and give a complete picture of the software from an implementation perspective. Guidelines are provided for characteristics of good design like modularity, distinct representations, and deriving the design from requirements analysis.
The document discusses critical systems and system dependability. It defines critical systems as systems where failure could result in significant economic losses, damage, or threats to human life. It describes four dimensions of dependability for critical systems: availability, reliability, safety, and security. It emphasizes that critical systems require trusted development methods to achieve high dependability.
The document discusses requirements analysis and specification. It provides an overview of the challenges in requirements specification for large scale systems. The key tasks in requirements are understanding user needs and precisely specifying what the future system will do. Various techniques for requirements analysis are described, including data flow diagrams and object oriented analysis. The importance of producing a software requirements specification document is discussed, including the need for the document to be correct, complete, unambiguous, consistent and verifiable. The typical components of a requirements specification document are also outlined.
software requirement and architecture.pdfwajoce8790
The document discusses requirements analysis and specification. It provides background on how requirements analysis is more difficult for large problems compared to small problems. The input is user needs and the output is a precise statement of what the future system will do. Requirements analysis necessarily involves interacting with people and ends with a software requirements specification document that specifies what the proposed system should do. A good requirements analysis and specification is essential for developing high quality software.
This document provides an overview of quality management in software engineering. It discusses software quality, standards, reviews and inspections, as well as software measurement and metrics. The key points covered include establishing an organizational framework for quality management, applying specific quality processes and standards at the project level, and conducting independent reviews to ensure compliance. Software metrics can help quantify attributes and identify anomalous components, but meaningful relationships between internal metrics and external quality attributes can be difficult to establish.
The document discusses verification and validation (V&V) in software engineering. It defines verification as ensuring a product is built correctly, and validation as ensuring the right product is built. V&V aims to discover defects and assess if a system is usable. Static and dynamic verification methods are covered, including inspections, testing, and automated analysis. The document outlines V&V goals, the debugging process, V-model development, test planning, and inspection techniques.
Maintenance involves keeping software or assets in working condition. There are four main types of maintenance: corrective, adaptive, preventive, and perfective. Maintenance is needed to fix problems, adapt to new environments, prevent issues, and improve performance. While necessary, maintenance is costly due to the work required to modify existing software. Efforts like designing for change and documentation can help reduce these costs. Overall, maintenance plays a critical role in maximizing the usefulness of software over its lifetime.
Software Requirement Specification is a most important topic asked in exams and for presentations in B.Tech comp. engg. This presentation contains all the important topic and deep knowledge of SRS.It includes definition, scope, role, how to write srs, template and template description. It tells how to build SRS and also includes examples for ease.
This affects the quality of software and increases the production cost of ... effectiveness of every method, it is useful to select the particular elicitation
http://www.imran.xyz
Software maintenance involves modifying software after delivery to correct faults, improve performance, or adapt to changes. It aims to enhance understandability and modifiability. Key activities that improve maintainability are establishing standards, high-quality design and documentation, and configuration management to track changes. Successful maintenance requires managerial processes like change control boards to review requests and quality assurance to validate changes.
This document discusses sockets programming in Java. It covers server sockets, which listen for incoming client connections, and client sockets, which connect to servers. It describes how to create server and client sockets in Java using the ServerSocket and Socket classes. Examples are provided of simple Java programs to implement a TCP/IP server and client using sockets.
Software Requirements in Software Engineering SE5koolkampus
The document introduces software requirements and describes how they are used to define what a system should do. It explains that requirements can be functional or non-functional, and discusses how requirements are organized in documents. Requirements describe the services and constraints for the system from the perspectives of users and developers.
Chapter07 determining system requirementsDhani Ahmad
This document discusses various methods for determining system requirements, including interviews, questionnaires, observation, document analysis, Joint Application Design (JAD), prototyping, and business process reengineering (BPR). Interviews can use open-ended or close-ended questions, and preparation is important. Questionnaires must be carefully designed and can include both open-ended and close-ended questions. JAD brings together key stakeholders to simultaneously collect requirements. Prototyping converts early requirements into a working system for user feedback. BPR aims to radically improve processes through reorganization and leveraging disruptive technologies.
The document provides an overview of several transport layer protocols and concepts:
- TCP is a connection-oriented protocol that provides reliable, ordered delivery through the use of acknowledgments, flow control, and error control. UDP is a simpler connectionless protocol.
- Sockets provide an interface between applications and the network, allowing applications to build distributed client-server systems.
- Congestion control is important to prevent network congestion and ensure fair resource sharing between flows. TCP uses end-to-end congestion control while some protocols use network feedback.
- RTP and RTCP are used for real-time media delivery over UDP, providing sequencing, timing information, and quality monitoring without guarantees.
- SCT
The document discusses software reuse and design for reuse. It covers the benefits of reuse including increased dependability and accelerated development. It also discusses potential problems like increased maintenance costs. The document then covers four layers of reuse - system, architecture, design, and implementation. It provides examples and approaches to support reuse at each level, including design patterns, object orientation principles, and component-based development.
This ppt covers the following
A strategic approach to testing
Test strategies for conventional software
Test strategies for object-oriented software
Validation testing
System testing
The art of debugging
The document discusses database design and the design process. It explains that database design involves determining the logical structure of tables and relationships between data elements. The design process consists of steps like determining relationships between data, dividing information into tables, specifying primary keys, and applying normalization rules. The document also covers entity-relationship diagrams and designing inputs and outputs, including input controls and designing report formats.
This document discusses various techniques for estimating software costs:
1. Expert judgment relies on experienced people's assessments but can be unreliable due to biases. The Delphi technique improves expert judgment by anonymously aggregating estimates over multiple rounds.
2. Work breakdown structures break projects down into components to estimate costs bottom-up. The COCOMO model also estimates bottom-up using algorithmic formulas adjusted by multipliers for attributes.
3. COCOMO is demonstrated through an example estimating effort of 191 person-months and a 13 month schedule for a 30,000 line embedded software project with high reliability requirements.
Structured Vs, Object Oriented Analysis and DesignMotaz Saad
This document discusses structured vs object-oriented analysis and design (SAD vs OOAD) for software development. It outlines the phases and modeling techniques used in SAD like data flow diagrams, decision tables, and entity relationship diagrams. It also outlines the phases and modeling techniques used in OOAD like use cases, class diagrams, sequence diagrams, and state machine diagrams. The document compares key differences between SAD and OOAD, discusses textbooks on software engineering and UML, and references papers on using UML in practice and evaluating the impact and costs/benefits of UML in software maintenance.
In this Business Analysis training session, you will learn about Requirement Elicitation Techniques. Topics covered in this session are:
• Requirements Engineering
• Project Scope
• Landscape of Requirements
• Properties of Requirements
• Types of Requirements
• Stakeholder
• Requirements Elicitation
• Techniques
For more information, click here: https://www.mindsmapped.com/courses/business-analysis/become-a-business-analyst-with-hands-on-practice/
The document discusses use case diagrams in UML modeling. It defines key components of use case diagrams including use cases, actors, the system boundary, and relationships like include, extend, and generalization. It provides examples of how to construct a use case diagram based on system functions and user goals. Specific use case diagram examples shown include an online ordering system and a vending machine.
The document discusses component-level design which occurs after architectural design. It aims to create a design model from analysis and architectural models. Component-level design can be represented using graphical, tabular, or text-based notations. The key aspects covered include:
- Defining a software component as a modular building block with interfaces and collaboration
- Designing class-based components following principles like open-closed and dependency inversion
- Guidelines for high cohesion and low coupling in components
- Designing conventional components using notations like sequence, if-then-else, and tabular representations
The document discusses key concepts in design engineering for software. It covers principles like abstraction, refinement, modularity, architecture, and information hiding that are important for developing high quality software. It emphasizes that software design is an iterative process of translating requirements into lower levels of abstraction until implementation. The goals of design are to implement all requirements, provide an understandable guide for developers and testers, and give a complete picture of the software from an implementation perspective. Guidelines are provided for characteristics of good design like modularity, distinct representations, and deriving the design from requirements analysis.
The document discusses critical systems and system dependability. It defines critical systems as systems where failure could result in significant economic losses, damage, or threats to human life. It describes four dimensions of dependability for critical systems: availability, reliability, safety, and security. It emphasizes that critical systems require trusted development methods to achieve high dependability.
The document discusses requirements analysis and specification. It provides an overview of the challenges in requirements specification for large scale systems. The key tasks in requirements are understanding user needs and precisely specifying what the future system will do. Various techniques for requirements analysis are described, including data flow diagrams and object oriented analysis. The importance of producing a software requirements specification document is discussed, including the need for the document to be correct, complete, unambiguous, consistent and verifiable. The typical components of a requirements specification document are also outlined.
software requirement and architecture.pdfwajoce8790
The document discusses requirements analysis and specification. It provides background on how requirements analysis is more difficult for large problems compared to small problems. The input is user needs and the output is a precise statement of what the future system will do. Requirements analysis necessarily involves interacting with people and ends with a software requirements specification document that specifies what the proposed system should do. A good requirements analysis and specification is essential for developing high quality software.
The document discusses the importance of properly analyzing and specifying software requirements, including the need to produce a high-quality Software Requirements Specification (SRS) document. It describes the requirements process, characteristics of a good SRS, components that should be included in an SRS, and provides examples of using use cases to specify functional requirements for different systems like an online auction site. The use of use cases is presented as an effective technique for specifying functionality in the SRS by describing interactions between actors and the system through scenarios.
Need for System Analysis
Stages in System Analysis
Structured SAD and tools :
DFD
Context Diagram
Decision Table
Structured Diagram.
System Development Models:
Water Flow
Prototype
Spiral
RAD
Roles and responsibilities of
System Analyst,
Database Administrator
Database Designer
CSF analysis is a method developed to guide businesses in creating and measuring success. It is widely used for technology and architectural planning in enterprise IT. Critical success factors are those factors which the management of organizations must focus and manage effectively.
For more such innovative content on management studies, join WeSchool PGDM-DLP Program: http://bit.ly/ZEcPAc
This document discusses the requirements engineering (RE) process. It defines a process as a set of organized activities that transforms inputs to outputs. The RE process involves problem analysis and product description tasks that run iteratively. Key activities in the RE process include requirements elicitation, analysis, specification, validation and management. The document also discusses factors like process models, actors, variability, safety requirements, support tools, improvement and maturity levels.
The document provides an overview of requirements engineering for software development. It discusses the importance of requirements specification, different types of requirements (functional, non-functional), and techniques for modeling requirements such as data flow diagrams, entity relationship diagrams, and structured English.
In systems engineering and software engineering, requirements analysis encompasses those tasks that go into determining the needs or conditions to meet for a new or altered product or project, taking account of the possibly conflicting requirements of the various stakeholders, analyzing, documenting, validating and managing software or system requirements.
This document provides an overview of systems analysis, including the differences between systems analysis and design, common phases and tasks of systems analysis like requirements discovery, and different approaches to systems analysis like structured analysis and accelerated systems analysis using prototypes. It describes tasks involved in scope definition, problem analysis, requirements analysis, logical design, and decision analysis phases.
The document provides an overview of requirements analysis and specification. It discusses the importance of thoroughly understanding requirements before building a system. Requirements analysis involves gathering requirements through techniques like interviews and analyzing them to resolve inconsistencies. The key outputs are the software requirements specification document, which describes the system functions, non-functional requirements, and constraints in a black-box manner. Complex logic is represented using decision trees and tables. The overall goals are to fully understand user needs and document them properly to form the basis for development.
Software Development Life Cycle (SDLC).pptxsandhyakiran10
The document describes the system development life cycle (SDLC) process. It involves several key phases: problem definition, feasibility study, system analysis, system design, system development, implementation, and maintenance. In the system analysis phase, requirements are gathered through interviews, documentation review, and other techniques. System design then specifies how the system will meet requirements through elements like the user interface, data design, and process design. The system is built during development, tested, and then implemented, which may involve training, file conversion, and evaluation. Maintenance keeps the system meeting needs with ongoing support. Accountants can be involved throughout by specifying needs, testing, and using the new system.
The document provides an overview of Software Requirement Specification (SRS) and Software Quality Assurance (SQA). It discusses the importance of well-written requirements documents, as without them developers do not know what to build and customers do not know what to expect. The document also outlines different types of requirements like functional, non-functional, user and system requirements. It describes various requirements elicitation techniques like interviews, brainstorming sessions, use case approach etc. Finally, it discusses modeling requirements using tools like data flow diagrams, data dictionaries and entity relationship diagrams.
System Analysis and Design Project documentationMAHERMOHAMED27
this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is this is
The document discusses various approaches to system analysis including waterfall, prototyping, rapid application development, and agile methods. It describes the typical phases of system analysis as planning, analysis, design, implementation, and support/maintenance. Key aspects of requirements analysis are covered such as information discovery techniques like interviews, questionnaires, and joint application design sessions. The benefits and shortcomings of different system analysis methodologies are also summarized.
This document discusses project planning, feasibility studies, and various factors to consider for IT projects. It covers guidelines for project plans, internal and external factors, components of a project plan, the project development lifecycle including planning, analysis, design, implementation, and support phases. It also discusses assessing the feasibility of projects, including tests of operational, technical, schedule, and economic feasibility. Methods for evaluating feasibility include feasibility matrices and analyses of benefits, costs, payback periods, and net present values. Managing stakeholder expectations is also addressed.
This document provides information about system engineering. It defines system engineering as an approach to design, implement, and evaluate complex systems. It lists several jobs that system engineers can have, such as system engineer, safety engineer, and space craft system engineer. It describes some of the duties of system engineers, which include ensuring everything works properly, creating new ideas, and coordinating with others. The document discusses elements of computer-based systems, including software, hardware, people, databases, documentation, and procedures. It also covers topics like system modeling, business process engineering, system architectures, product engineering, and requirements engineering.
The document discusses the process of analyzing client requirements for a new system. This includes gathering information from clients, clarifying needs, structuring requirements, and confirming with clients that all functional, quality, and other needs have been identified correctly and fall within the project scope. The key steps are analyzing the information gathered, documenting the requirements, and obtaining final sign-off from stakeholders to finalize the requirements document.
This document discusses tools and techniques for system design, including logical data flow diagrams (DFDs) and data dictionaries. DFDs use simple graphical symbols to represent processes, data flows, external entities, and data stores in a system. They provide an overview of how data moves through a system. A data dictionary comprehensively defines all data elements in a system. Physical design and prototyping are also discussed as part of specifying hardware, software, user interfaces, and the overall implementation of a system.
The document discusses requirement gathering and analysis. It emphasizes the importance of requirements in project success and describes key tasks in requirements engineering including inception, elicitation, and elaboration. During inception, questions are asked to understand the problem, stakeholders, and desired solution. Elicitation involves discovering requirements through collaboration and techniques like use cases. Elaboration refines information through analysis modeling with elements like use cases, classes, and behaviors. The goal is a model that defines the functional, informational, and behavioral domains of the problem.
Macroeconomics- Movie Location
This will be used as part of your Personal Professional Portfolio once graded.
Objective:
Prepare a presentation or a paper using research, basic comparative analysis, data organization and application of economic information. You will make an informed assessment of an economic climate outside of the United States to accomplish an entertainment industry objective.
ISO/IEC 27001, ISO/IEC 42001, and GDPR: Best Practices for Implementation and...PECB
Denis is a dynamic and results-driven Chief Information Officer (CIO) with a distinguished career spanning information systems analysis and technical project management. With a proven track record of spearheading the design and delivery of cutting-edge Information Management solutions, he has consistently elevated business operations, streamlined reporting functions, and maximized process efficiency.
Certified as an ISO/IEC 27001: Information Security Management Systems (ISMS) Lead Implementer, Data Protection Officer, and Cyber Risks Analyst, Denis brings a heightened focus on data security, privacy, and cyber resilience to every endeavor.
His expertise extends across a diverse spectrum of reporting, database, and web development applications, underpinned by an exceptional grasp of data storage and virtualization technologies. His proficiency in application testing, database administration, and data cleansing ensures seamless execution of complex projects.
What sets Denis apart is his comprehensive understanding of Business and Systems Analysis technologies, honed through involvement in all phases of the Software Development Lifecycle (SDLC). From meticulous requirements gathering to precise analysis, innovative design, rigorous development, thorough testing, and successful implementation, he has consistently delivered exceptional results.
Throughout his career, he has taken on multifaceted roles, from leading technical project management teams to owning solutions that drive operational excellence. His conscientious and proactive approach is unwavering, whether he is working independently or collaboratively within a team. His ability to connect with colleagues on a personal level underscores his commitment to fostering a harmonious and productive workplace environment.
Date: May 29, 2024
Tags: Information Security, ISO/IEC 27001, ISO/IEC 42001, Artificial Intelligence, GDPR
-------------------------------------------------------------------------------
Find out more about ISO training and certification services
Training: ISO/IEC 27001 Information Security Management System - EN | PECB
ISO/IEC 42001 Artificial Intelligence Management System - EN | PECB
General Data Protection Regulation (GDPR) - Training Courses - EN | PECB
Webinars: https://pecb.com/webinars
Article: https://pecb.com/article
-------------------------------------------------------------------------------
For more information about PECB:
Website: https://pecb.com/
LinkedIn: https://www.linkedin.com/company/pecb/
Facebook: https://www.facebook.com/PECBInternational/
Slideshare: http://www.slideshare.net/PECBCERTIFICATION
it describes the bony anatomy including the femoral head , acetabulum, labrum . also discusses the capsule , ligaments . muscle that act on the hip joint and the range of motion are outlined. factors affecting hip joint stability and weight transmission through the joint are summarized.
हिंदी वर्णमाला पीपीटी, hindi alphabet PPT presentation, hindi varnamala PPT, Hindi Varnamala pdf, हिंदी स्वर, हिंदी व्यंजन, sikhiye hindi varnmala, dr. mulla adam ali, hindi language and literature, hindi alphabet with drawing, hindi alphabet pdf, hindi varnamala for childrens, hindi language, hindi varnamala practice for kids, https://www.drmullaadamali.com
Exploiting Artificial Intelligence for Empowering Researchers and Faculty, In...Dr. Vinod Kumar Kanvaria
Exploiting Artificial Intelligence for Empowering Researchers and Faculty,
International FDP on Fundamentals of Research in Social Sciences
at Integral University, Lucknow, 06.06.2024
By Dr. Vinod Kumar Kanvaria
The simplified electron and muon model, Oscillating Spacetime: The Foundation...RitikBhardwaj56
Discover the Simplified Electron and Muon Model: A New Wave-Based Approach to Understanding Particles delves into a groundbreaking theory that presents electrons and muons as rotating soliton waves within oscillating spacetime. Geared towards students, researchers, and science buffs, this book breaks down complex ideas into simple explanations. It covers topics such as electron waves, temporal dynamics, and the implications of this model on particle physics. With clear illustrations and easy-to-follow explanations, readers will gain a new outlook on the universe's fundamental nature.
Strategies for Effective Upskilling is a presentation by Chinwendu Peace in a Your Skill Boost Masterclass organisation by the Excellence Foundation for South Sudan on 08th and 09th June 2024 from 1 PM to 3 PM on each day.
How to Add Chatter in the odoo 17 ERP ModuleCeline George
In Odoo, the chatter is like a chat tool that helps you work together on records. You can leave notes and track things, making it easier to talk with your team and partners. Inside chatter, all communication history, activity, and changes will be displayed.
A Strategic Approach: GenAI in EducationPeter Windle
Artificial Intelligence (AI) technologies such as Generative AI, Image Generators and Large Language Models have had a dramatic impact on teaching, learning and assessment over the past 18 months. The most immediate threat AI posed was to Academic Integrity with Higher Education Institutes (HEIs) focusing their efforts on combating the use of GenAI in assessment. Guidelines were developed for staff and students, policies put in place too. Innovative educators have forged paths in the use of Generative AI for teaching, learning and assessments leading to pockets of transformation springing up across HEIs, often with little or no top-down guidance, support or direction.
This Gasta posits a strategic approach to integrating AI into HEIs to prepare staff, students and the curriculum for an evolving world and workplace. We will highlight the advantages of working with these technologies beyond the realm of teaching, learning and assessment by considering prompt engineering skills, industry impact, curriculum changes, and the need for staff upskilling. In contrast, not engaging strategically with Generative AI poses risks, including falling behind peers, missed opportunities and failing to ensure our graduates remain employable. The rapid evolution of AI technologies necessitates a proactive and strategic approach if we are to remain relevant.
Physiology and chemistry of skin and pigmentation, hairs, scalp, lips and nail, Cleansing cream, Lotions, Face powders, Face packs, Lipsticks, Bath products, soaps and baby product,
Preparation and standardization of the following : Tonic, Bleaches, Dentifrices and Mouth washes & Tooth Pastes, Cosmetics for Nails.
3. Introduction
Requirements3
Identifying requirements -> critical, they are in people minds
For small scale, understand and specifying requirements is easy
For large problem - very hard; probably the hardest, most
problematic and error prone
Input : user needs in minds of some people
Requirements Phase: translates client ideas (from their minds)
into formal document
Output : precise statement of what the future system will do
Origin of S/w System ---> Need of clients
Creation of S/w system ---> Developers
Completed S/w system ---> used by end users
4. Software Requirements
Requirements4
Identifying and specifying req. necessarily involves people
interaction
Cannot be automated
Requirement (IEEE): A condition or capability that must be
possessed by a system, condition or capability that must be met
Req. phase ends with a Software Requirements Specification (SRS)
document
Goal: SRS specifies what the proposed system should do,
without describing how the software will do it
5. Requirements5
Requirements understanding is hard
Visualizing a future system is difficult
Capability of the future system not clear
Requirements change with time
…
Essential to do a proper analysis and specification of
requirements
6. Need for SRS
Requirements6
SRS establishes basis of agreement between the user
and the supplier.
Users needs have to be satisfied, but user may not understand
software
Developers will develop the system, but may not know about
problem domain
SRS is the medium to bridge the comm. gap and specify user
needs in a manner both can understand
7. Need for SRS…
Requirements7
SRS helps user understand his needs.
Users do not always know their needs initially
User must analyze and understand the needs
The req. process helps clarify needs
SRS provides a reference for validation of the final
product
SRS states clear understanding about what is expected.
Validation - “ SW satisfies the SRS “
High quality SRS essential for high Quality SW
Requirements defects are not few
Requirement errors get manifested in final s/w
To satisfy the quality objective, must begin with high quality SRS without
errors
8. Need for SRS…
Requirements8
Good SRS reduces the development cost
SRS errors are expensive to fix later
Req. changes can cost a lot (up to 40%)
Good SRS can minimize changes and errors
Substantial savings; extra effort spent during req. saves multiple
times that effort
Example
Cost of fixing errors in req. , design , coding , acceptance
testing and operation are 2 , 5 , 15 , 50 , 150 person-months
9. Need for SRS…
Requirements9
Example …
After req. phase 65% req. errs detected in design , 2% in
coding, 30% in Acceptance testing, 3% during operation
If 50 requirement errors are not removed in the req. phase, the
total cost
32.5 *5 + 1*15 + 15*50 + 1.5*150 = 1152 hrs
If 100 person-hours invested additionally in req, to catch these
50 defects , then development cost could be reduced by 1152
person-hours.
Net reduction in cost is 1052 person-hours
10. Requirements Process
Requirements10
Sequence of steps that need to be performed to convert user
needs into SRS
Process has to elicit needs and requirements and clearly
specifies it
Basic activities
Problem or Requirement Analysis
Requirement Specification
Validation
Analysis involves elicitation and is the hardest
12. Requirement process..
Requirements12
Process is not linear, it is iterative and parallel
Overlap and feedback between these activities
Specification itself may help analysis
Validation activity reveals problems in the SRS leads to further
analysis and specification
For complex systems – use Divide and conquer strategy
to decompose into small parts, understand each part and relation
between parts
13. Requirements Process…
Requirements13
Problem Analysis
Starts with high-level problem statement
Model problem domain and environment
Focus: Understanding the desired systems behavior,
constraints, inputs and outputs
Techniques like DFD, Object diagrams etc. used in the
analysis
Methods of Analysis and Design activities are same but:
Analysis deals with Problem Domain (understanding of system)
Design deals with Solution Domain (optimizing the system)
14. Requirements14
Requirements Specification:
Focus: Clearly specifying the requirements
Analysis structures helps in specification, but the transition is not
final
Transition from analysis to specification is hard
In specs, external behavior are specified
Input: Large amount of information generated via. Analysis
Goal: Properly organizing, removing redundancies, and describing
requirements
Issues like representation, specification languages and tools are
addressed
16. Characteristics…
Requirements16
Correctness
Each requirement accurately represents some desired feature in the
final system
Completeness
All desired features/characteristics specified
Hardest to satisfy
Completeness and correctness strongly related
Unambiguous
Each req. has exactly one meaning
Without this, errors will creep in
Important as natural languages often used
Verifiability
There must exist a cost effective way of checking if s/w satisfies
requirements
17. Requirements17
Consistent
two requirements don’t contradict each other
Ranked for importance/stability
Needed for prioritizing in construction
To reduce risks due to changing requirements
Modifiable
Accepts changes easily in structure and style by preserving
completeness and correctness
Traceable
Traceability aids verification and validation
Forward Traceability: Req. should be traceable to some design and
code elements
Backward Traceability: trace design and code elements to the
req. they support
18. Requirements Validation
Focus: ensures all req. are stated in SRS
Checks for the quality of SRS
Result: Produces the validated SRS at the end
Requirements18
19. Problem Analysis
Requirements19
Aim: Understand the needs, requirements, and constraints on the
software
Analysis involves:
interviewing client and users
reading manuals
studying current systems
helping client/users understand new possibilities
Like becoming a consultant to help customers understand the
need
Must understand the working of the organization , client and users
20. Interpersonal issues are important
Communication skills are very important
Basic principle: problem partition
Partition w.r.t what?
Object - OO analysis
Function - Structural analysis
Events in the system – event partitioning
System defined from multiple point of view - Projection
Requirements20
21. Requirements21
Informal Approach:
No defined methodology
Widely used
Analyst acts as listener, absorbing the information provided
Information is obtained by:
Interacting with clients, end users
Brainstorming
Study of existing documents
Questionnaires,…
Problem in the Analyst minds are directly translated to SRS
22. Data Flow Modeling
Requirements22
Widely used;
focuses on functions performed in the system
Views a system as a network of data transforms through which the
data flows
Uses data flow diagrams (DFDs) and functional decomposition in
modeling
SSAD methodology uses DFD to organize information, and guide
analysis
23. Data flow diagrams
Requirements23
It shows flow of data processed within a system based on
inputs and outputs
used as a first step toward redesigning a system
provide a graphical representation of a system at any
level of detail
creating an easy-to-understand picture of what the
system does
24. Focus on what transformations happen, how they are done is
not important
Usually major inputs/outputs shown, minor are ignored in
this modeling
No loops , conditional thinking , …
DFD is NOT a flow chart, no algorithmic design/thinking
DFD considers only Sink/Source , external files
Requirements24
25. 25
External Entity
(Rectangle)
• Actors,
• Data Source/ Sink,
• Originator/ consumer of data,
• Produce and consume data that flows between
the entity
•They are typically placed at the boundaries of the
diagram
•Indicate a system or subsystem
Process
(Circle or Bubble)
• Data transforms - transform incoming data to
outgoing data
• Changes or transforms data flows.
• Processes are typically oriented from top to
bottom and left to right
Data Store • Data Store - does not generate any operations
•holds data for later access
•consist of files or documents
•Input flows to DS: - change the stored data.
•Output flows: data retrieved from the store.
Data Flow Data Travels
•Movement of data between external entities,
processes and data stores
27. DFD Conventions
Requirements27
External files shown as labeled straight lines
Need for multiple data flows by a process represented by * (and)
OR relationship represented by +
All processes and arrows should be named
Processes should represent transforms, arrows should represent
some data
28. Drawing a DFD for a system
Requirements28
Identify inputs, outputs, sources, sinks for the system
Work your way consistently from inputs to outputs
Identify a few high-level transforms to capture full
transformation
If get stuck, reverse direction
When high-level transforms defined, then refine each
transform with more detailed transformations
29. Drawing a DFD for a system..
Requirements29
Never show control logic; if thinking in terms of
loops/decisions, stop & restart
Label each arrows and bubbles; carefully identify inputs and
outputs of each transform
Make use of + & *
Try drawing alternate DFDs
30. Drawing a DFD – quick go
through
Requirements30
If get stuck, reverse direction
If control logic comes in , stop and restart
Label each arrows and bubbles
Make use of + & *
Try drawing alternate DFDs
31. Leveled DFDs
Requirements31
DFD of a system may be very large
Can organize it hierarchically
Start with a top level DFD with a few bubbles
then draw DFD for each bubble
Preserve I/O when “exploding” a bubble so consistency preserved
Makes drawing the leveled DFD a top-down refinement process,
and allows modeling of large and complex systems
32. Level-0 DFD
It is also known as context diagram.
It’s designed to be an abstraction view, showing the system as a
single process with its relationship to external entities.
It represent the entire system as single bubble with input and
output data indicated by incoming/outgoing arrows.
Requirements32
34. 1-Level DFD
In 1-level DFD, context diagram is decomposed into
multiple bubbles/processes.
In this level, we highlight the main functions of the system
Breakdown the high level process of 0-level DFD into
subprocesses.
Requirements34
36. 2-level DFD:
2-level DFD goes one step deeper into parts of 1-level DFD.
It can be used to plan or record the specific/necessary detail
about the system’s functioning.
Requirements36
38. Data Dictionary
Requirements38
In a DFD, arrows are labeled with data items
Data dictionary defines data flows in a DFD
Shows structure of data; structure becomes more visible
when exploding
Can use regular expressions to express the structure of
data
39. Data Dictionary Example
Requirements39
For the timesheet DFD
Weekly_timesheet = employee_name + id + [regular_hrs
+ overtime_hrs]*
Pay_rate = [hourly | daily | weekly] + dollar_amt
Employee_name = last + first + middle
Id = digit + digit + digit + digit
40. DFD drawing – common
errors
Requirements40
Unlabeled data flows
Missing data flows
Extraneous data flows
Consistency not maintained during refinement
Missing processes
Too detailed or too abstract
Contains some control information