The document discusses human-computer interaction in the software engineering process. It describes the typical lifecycle of software development, including requirements specification, design, implementation, testing, and maintenance. For interactive systems, a linear waterfall model is not suitable due to the need for extensive user testing and feedback. Usability engineering aims to make usability measurable by specifying requirements. Iterative design and prototyping help overcome incomplete requirements through simulations and prototypes to gather user feedback. Design rationale records the reasons for design decisions to aid communication, reuse of knowledge, and evaluation of tradeoffs.
The document discusses different types of software processes, including plan-driven/waterfall processes and agile processes. Plan-driven processes involve planning all activities in advance, while agile processes use incremental planning and make it easier to change plans to reflect changing requirements. Most practical processes use elements of both approaches. Waterfall processes are only suitable when requirements are stable, while agile processes use short iterations, minimal documentation, and aim for rapid delivery. Reuse-oriented development combines aspects of plan-driven and agile approaches.
This document provides an overview of how human-computer interaction (HCI) affects the software development process. It discusses how usability engineering promotes interactive system design and the software life cycle. The software life cycle involves requirements specification, design, implementation, testing, and maintenance. Iterative design and prototyping are important to overcome the limitations of traditional software development models. Usability metrics and standards help specify and test usability requirements. While iterative design has benefits, initial design decisions and a lack of understanding problems can limit its effectiveness.
Requirements engineering faces inherent challenges due to changing requirements, differing stakeholder perspectives, lack of standardization, and political influences. Key issues include requirements constantly changing as the external environment evolves, stakeholders having conflicting views that must be reconciled, high variability between domains and organizations making process standardization difficult, and requirements sometimes being driven by internal politics rather than objective needs. Effective requirements engineering requires understanding and managing these challenges.
This version of the presentation includes extra slides with the text of the speaker's notes as I discovered that Slideshare does not make the notes visible to users.
The System Development Life Cycle (SDLC) describes the stages of a software development project. It involves planning, analysis, design, implementation, testing, and maintenance. In the analysis stage, tools like interviews and documentation are used to understand business needs. The design stage separates logical design, which specifies user needs, from physical design, which specifies how the system will function. Testing occurs at the unit, integration, and system levels to ensure quality before implementation. Post-implementation review evaluates whether the new system meets requirements.
The document discusses human-computer interaction in the software engineering process. It describes the typical lifecycle of software development, including requirements specification, design, implementation, testing, and maintenance. For interactive systems, a linear waterfall model is not suitable due to the need for extensive user testing and feedback. Usability engineering aims to make usability measurable by specifying requirements. Iterative design and prototyping help overcome incomplete requirements through simulations and prototypes to gather user feedback. Design rationale records the reasons for design decisions to aid communication, reuse of knowledge, and evaluation of tradeoffs.
The document discusses different types of software processes, including plan-driven/waterfall processes and agile processes. Plan-driven processes involve planning all activities in advance, while agile processes use incremental planning and make it easier to change plans to reflect changing requirements. Most practical processes use elements of both approaches. Waterfall processes are only suitable when requirements are stable, while agile processes use short iterations, minimal documentation, and aim for rapid delivery. Reuse-oriented development combines aspects of plan-driven and agile approaches.
This document provides an overview of how human-computer interaction (HCI) affects the software development process. It discusses how usability engineering promotes interactive system design and the software life cycle. The software life cycle involves requirements specification, design, implementation, testing, and maintenance. Iterative design and prototyping are important to overcome the limitations of traditional software development models. Usability metrics and standards help specify and test usability requirements. While iterative design has benefits, initial design decisions and a lack of understanding problems can limit its effectiveness.
Requirements engineering faces inherent challenges due to changing requirements, differing stakeholder perspectives, lack of standardization, and political influences. Key issues include requirements constantly changing as the external environment evolves, stakeholders having conflicting views that must be reconciled, high variability between domains and organizations making process standardization difficult, and requirements sometimes being driven by internal politics rather than objective needs. Effective requirements engineering requires understanding and managing these challenges.
This version of the presentation includes extra slides with the text of the speaker's notes as I discovered that Slideshare does not make the notes visible to users.
The System Development Life Cycle (SDLC) describes the stages of a software development project. It involves planning, analysis, design, implementation, testing, and maintenance. In the analysis stage, tools like interviews and documentation are used to understand business needs. The design stage separates logical design, which specifies user needs, from physical design, which specifies how the system will function. Testing occurs at the unit, integration, and system levels to ensure quality before implementation. Post-implementation review evaluates whether the new system meets requirements.
The document discusses the key activities involved in software requirements: eliciting requirements by meeting with clients to understand their needs; expressing requirements through representations like use cases or user stories; prioritizing requirements by determining essential, important, and optional features; analyzing requirements to ensure the best possible product; and managing requirements as a continuous process of organizing, reprioritizing, and tracking changes to requirements. It also lists common types of requirements like business, user, functional, and non-functional requirements.
The document discusses the importance of properly defining software requirements and the risks of inadequate requirements processes. It outlines three levels of software requirements - business, user, and functional requirements. Between 40-60% of defects can be traced back to errors in the requirements stage. The requirements must be documented and represent the needs of users external to the system. Risks of poor requirements include insufficient user involvement, creeping requirements, and inaccurate planning.
This document discusses various aspects of software maintenance including roles, skill sets, organization structures, estimation of resources, and people issues. It covers factors to consider for estimating maintenance resources such as product complexity, experience levels, training needs, and customer expectations. Various organization models are described including functional, product-based, and distributed structures. Best practices include job rotation, internal deputations, and preventative maintenance while pitfalls involve overlooking communication costs and discrimination across locations.
System Development Life Cycle (SDLC) is a systematic frameworks that helps to deliver products on time with high quality. This presentation gives some real time case studies and establishes case for having a standard framework. It also covers major phases involved in product development.
This document discusses HCI (human-computer interaction) in the software development process. It explains that HCI is used to create an intuitive interface between users and products. Usability, effectiveness, efficiency, and satisfaction are important traditional usability categories to consider. The software lifecycle involves designing for usability at all stages. Prototyping is discussed as a model where prototypes are built, tested, and refined with user feedback until an acceptable final system is achieved. Design involves understanding users, requirements, and balancing goals within technical constraints.
The document discusses considerations for a user-driven development approach, including gathering user requirements and operational needs, documenting them in a requirements matrix. It also discusses developing a technical concept of operations and contract to define the problem being solved, intended changes and results, as well as operational uses and interdependencies between groups. User-driven development principles are proposed to guide developers and serve as a checklist to ensure the user perspective is considered.
The document discusses and compares two software development life cycle (SDLC) models: the waterfall model and evolutionary model. The waterfall model involves 5 sequential phases: requirements analysis, design, implementation, testing, and maintenance. However, it is inflexible and does not allow for updates based on user feedback. The evolutionary model involves iterative development of prototypes based on basic requirements, with customer feedback and modifications to subsequent versions. This model is better suited for developing online systems and user interfaces as it allows for evolution through use.
The document discusses several aspects of software maintenance including:
1) The importance of thorough requirements gathering to reduce maintenance needs later on by clarifying expectations, priorities, and acceptance criteria up front.
2) Design considerations like evolvability, reuse, standards, testability, and maintainability to minimize future maintenance work.
3) The role of testing in both development and ongoing maintenance.
4) Other maintenance activities beyond fixes like adaptive maintenance for new requirements, data migration, rewriting code, and preventative maintenance to address common user errors.
The document discusses the key activities involved in software maintenance problem resolution and fix distribution. For problem resolution, it describes categorizing, prioritizing, reproducing, fixing, and scheduling problems. It also discusses identifying the right developer, documentation, and measurements. For fix distribution, it outlines choosing a distribution method like individual fixes or patch bundles, composing fixes, testing, and scheduling releases. It concludes with challenges, best practices, and effectiveness measures for both problem resolution and fix distribution.
Software Engineering Layered Technology Software Process FrameworkJAINAM KAPADIYA
Software engineering is the application of engineering principles to software development to obtain economical and quality software. It is a layered technology with a focus on quality. The foundation is the software process, which provides a framework of activities. This includes common activities like communication, modeling, planning, construction, and deployment. Additional umbrella activities support the process, such as quality assurance, configuration management, and risk management.
What is Software Engineering
Software Characteristics
Types Of Software'S
Layered Technology
Difference Between Software Engineering and Computer Science
This document introduces software engineering and discusses its importance. It explains that software engineering is concerned with the systematic development of software and aims for cost-effective and reliable results. It addresses common questions about software, processes, methods and challenges. It emphasizes that software engineers have ethical responsibilities to act with integrity, protect intellectual property and not misuse systems.
Mostly people ask what is system development life cycle so, you can read the 7 stages of system development life cycle step by step from IPHS Technologies
An overview of software requirements engineeringIan Sommerville
Requirements engineering involves discovering, documenting, and maintaining requirements for computer systems. Requirements specify what should be implemented or constrain the system. Getting requirements wrong can lead to late delivery, unhappy customers, unreliable systems, and high maintenance costs. Requirements engineering is difficult because stakeholder needs change rapidly, stakeholders have different goals, and political factors influence requirements.
Non-Functional Requirements are as important as Functional Requirements. Requirement that cannot be measured is not a requirement. NFR's are critical for successful software architecture development
The document discusses CRUD (Create, Read, Update, Delete) operations and JAD (Joint Application Development).
CRUD represents the basic SQL operations - Create, Read, Update, Delete. A CRUD analysis validates that a data model accounts for all required create, retrieve, update, delete functions. JAD is a process where developers, managers, users work together to build a product using structured interview sessions over 3-6 months. It aims to improve quality, communication and reduce costs and errors compared to traditional development.
Storyboarding is a visual technique used in software requirements engineering to help understand user needs and system functionality. It involves creating a series of illustrations that show how a user will interact with a proposed system. Storyboards have benefits like communicating design ideas clearly and allowing feedback before development. Prototyping creates a mock-up of a proposed system to help validate requirements with users. Use cases are written descriptions of how users will perform tasks with a system. They define the actors, scenarios, and goals to help specify requirements.
- The document discusses agile usability testing conducted by fhios, a user experience research center, for a financial services provider redesigning websites for mortgages, savings, and bank accounts.
- Usability testing was conducted iteratively over 3 weeks with 45 participants testing low-fidelity prototypes in 3 iterations to identify usability issues and ensure the prototypes met user needs.
- Findings from each iteration were reported to developers and incorporated into the next iteration, allowing continuous user validation and improvements to be made quickly within sprints.
The document discusses the Software Development Life Cycle (SDLC), which is a framework for developing software in a systematic and efficient manner. It involves several phases from planning and requirements analysis to development, testing, deployment, and maintenance. SDLC helps estimate timelines, test software thoroughly, and develop applications in a disciplined way. The key phases include initiation, planning, requirements analysis, design, development, integration and testing, implementation, deployment, and maintenance.
Describes the basic activities of software engineering - specification, design and implementation, validation and evolution.
Accompanies video:
https://www.youtube.com/watch?v=Z2no7DxDWRI
Software engineering is about managing the complexity of large software systems. It involves the systematic development and evolution of large, high-quality software systems within cost, time, and other constraints. A key challenge is that software must be maintained and updated to meet changing needs while also handling distributed, heterogeneous systems. Software engineers must behave ethically and consider wider responsibilities than just technical skills.
The document discusses the key activities involved in software requirements: eliciting requirements by meeting with clients to understand their needs; expressing requirements through representations like use cases or user stories; prioritizing requirements by determining essential, important, and optional features; analyzing requirements to ensure the best possible product; and managing requirements as a continuous process of organizing, reprioritizing, and tracking changes to requirements. It also lists common types of requirements like business, user, functional, and non-functional requirements.
The document discusses the importance of properly defining software requirements and the risks of inadequate requirements processes. It outlines three levels of software requirements - business, user, and functional requirements. Between 40-60% of defects can be traced back to errors in the requirements stage. The requirements must be documented and represent the needs of users external to the system. Risks of poor requirements include insufficient user involvement, creeping requirements, and inaccurate planning.
This document discusses various aspects of software maintenance including roles, skill sets, organization structures, estimation of resources, and people issues. It covers factors to consider for estimating maintenance resources such as product complexity, experience levels, training needs, and customer expectations. Various organization models are described including functional, product-based, and distributed structures. Best practices include job rotation, internal deputations, and preventative maintenance while pitfalls involve overlooking communication costs and discrimination across locations.
System Development Life Cycle (SDLC) is a systematic frameworks that helps to deliver products on time with high quality. This presentation gives some real time case studies and establishes case for having a standard framework. It also covers major phases involved in product development.
This document discusses HCI (human-computer interaction) in the software development process. It explains that HCI is used to create an intuitive interface between users and products. Usability, effectiveness, efficiency, and satisfaction are important traditional usability categories to consider. The software lifecycle involves designing for usability at all stages. Prototyping is discussed as a model where prototypes are built, tested, and refined with user feedback until an acceptable final system is achieved. Design involves understanding users, requirements, and balancing goals within technical constraints.
The document discusses considerations for a user-driven development approach, including gathering user requirements and operational needs, documenting them in a requirements matrix. It also discusses developing a technical concept of operations and contract to define the problem being solved, intended changes and results, as well as operational uses and interdependencies between groups. User-driven development principles are proposed to guide developers and serve as a checklist to ensure the user perspective is considered.
The document discusses and compares two software development life cycle (SDLC) models: the waterfall model and evolutionary model. The waterfall model involves 5 sequential phases: requirements analysis, design, implementation, testing, and maintenance. However, it is inflexible and does not allow for updates based on user feedback. The evolutionary model involves iterative development of prototypes based on basic requirements, with customer feedback and modifications to subsequent versions. This model is better suited for developing online systems and user interfaces as it allows for evolution through use.
The document discusses several aspects of software maintenance including:
1) The importance of thorough requirements gathering to reduce maintenance needs later on by clarifying expectations, priorities, and acceptance criteria up front.
2) Design considerations like evolvability, reuse, standards, testability, and maintainability to minimize future maintenance work.
3) The role of testing in both development and ongoing maintenance.
4) Other maintenance activities beyond fixes like adaptive maintenance for new requirements, data migration, rewriting code, and preventative maintenance to address common user errors.
The document discusses the key activities involved in software maintenance problem resolution and fix distribution. For problem resolution, it describes categorizing, prioritizing, reproducing, fixing, and scheduling problems. It also discusses identifying the right developer, documentation, and measurements. For fix distribution, it outlines choosing a distribution method like individual fixes or patch bundles, composing fixes, testing, and scheduling releases. It concludes with challenges, best practices, and effectiveness measures for both problem resolution and fix distribution.
Software Engineering Layered Technology Software Process FrameworkJAINAM KAPADIYA
Software engineering is the application of engineering principles to software development to obtain economical and quality software. It is a layered technology with a focus on quality. The foundation is the software process, which provides a framework of activities. This includes common activities like communication, modeling, planning, construction, and deployment. Additional umbrella activities support the process, such as quality assurance, configuration management, and risk management.
What is Software Engineering
Software Characteristics
Types Of Software'S
Layered Technology
Difference Between Software Engineering and Computer Science
This document introduces software engineering and discusses its importance. It explains that software engineering is concerned with the systematic development of software and aims for cost-effective and reliable results. It addresses common questions about software, processes, methods and challenges. It emphasizes that software engineers have ethical responsibilities to act with integrity, protect intellectual property and not misuse systems.
Mostly people ask what is system development life cycle so, you can read the 7 stages of system development life cycle step by step from IPHS Technologies
An overview of software requirements engineeringIan Sommerville
Requirements engineering involves discovering, documenting, and maintaining requirements for computer systems. Requirements specify what should be implemented or constrain the system. Getting requirements wrong can lead to late delivery, unhappy customers, unreliable systems, and high maintenance costs. Requirements engineering is difficult because stakeholder needs change rapidly, stakeholders have different goals, and political factors influence requirements.
Non-Functional Requirements are as important as Functional Requirements. Requirement that cannot be measured is not a requirement. NFR's are critical for successful software architecture development
The document discusses CRUD (Create, Read, Update, Delete) operations and JAD (Joint Application Development).
CRUD represents the basic SQL operations - Create, Read, Update, Delete. A CRUD analysis validates that a data model accounts for all required create, retrieve, update, delete functions. JAD is a process where developers, managers, users work together to build a product using structured interview sessions over 3-6 months. It aims to improve quality, communication and reduce costs and errors compared to traditional development.
Storyboarding is a visual technique used in software requirements engineering to help understand user needs and system functionality. It involves creating a series of illustrations that show how a user will interact with a proposed system. Storyboards have benefits like communicating design ideas clearly and allowing feedback before development. Prototyping creates a mock-up of a proposed system to help validate requirements with users. Use cases are written descriptions of how users will perform tasks with a system. They define the actors, scenarios, and goals to help specify requirements.
- The document discusses agile usability testing conducted by fhios, a user experience research center, for a financial services provider redesigning websites for mortgages, savings, and bank accounts.
- Usability testing was conducted iteratively over 3 weeks with 45 participants testing low-fidelity prototypes in 3 iterations to identify usability issues and ensure the prototypes met user needs.
- Findings from each iteration were reported to developers and incorporated into the next iteration, allowing continuous user validation and improvements to be made quickly within sprints.
The document discusses the Software Development Life Cycle (SDLC), which is a framework for developing software in a systematic and efficient manner. It involves several phases from planning and requirements analysis to development, testing, deployment, and maintenance. SDLC helps estimate timelines, test software thoroughly, and develop applications in a disciplined way. The key phases include initiation, planning, requirements analysis, design, development, integration and testing, implementation, deployment, and maintenance.
Describes the basic activities of software engineering - specification, design and implementation, validation and evolution.
Accompanies video:
https://www.youtube.com/watch?v=Z2no7DxDWRI
Software engineering is about managing the complexity of large software systems. It involves the systematic development and evolution of large, high-quality software systems within cost, time, and other constraints. A key challenge is that software must be maintained and updated to meet changing needs while also handling distributed, heterogeneous systems. Software engineers must behave ethically and consider wider responsibilities than just technical skills.
This document discusses human-computer interaction (HCI) and usability engineering. It covers HCI in the software development process, including design rules, evaluation techniques, and universal design. Specific topics covered include the software life cycle, usability engineering, iterative design and prototyping, design rationale, and evaluation methods. Prototyping techniques like storyboards and simulations are also discussed. The goal of the document is to provide an overview of how usability and user experience is incorporated into the software engineering process.
Usability Engineering Presentation Slideswajahat Gul
Usability: the extent to which a product can be used by specified users to achieve specified goals with effectiveness, efficiency and satisfaction in a specified context of use.“
For instance:
• Appropriate for a purpose
• Comprehensible, usable, (learnable), …
• Ergonomic, high-performance, ...
• Reliable, robust, …
The document discusses the software engineering design process and usability engineering. It describes the typical activities in the design life cycle including requirements specification, architectural design, detailed design, verification and validation. It emphasizes that usability should be considered throughout the life cycle. The document also discusses using design rules/standards, usability specifications, iterative design/prototyping, and capturing design rationale to improve the process and outcome.
The document discusses various aspects of software processes and life cycles. It describes three types of reusable software components: web services, object collections, and stand-alone systems. It also outlines common phases in a software life cycle like requirements analysis, design, implementation, testing, deployment, and maintenance. Incremental delivery approaches are discussed where early increments are delivered to customers.
The document discusses various aspects of software processes and life cycles. It describes three types of reusable software components: web services, object collections, and stand-alone systems. It also outlines common phases in a software life cycle like requirements analysis, design, implementation, testing, deployment, and maintenance. Incremental delivery approaches are discussed where early increments are delivered to customers.
This document discusses interaction design and the design process. It covers:
1. Interaction design focuses on how interactive products communicate with users to make them more useful, usable, and desirable. The design process involves identifying user needs, developing designs, building prototypes, and evaluating designs through iterations.
2. Software engineering principles like software development lifecycles can be applied to interactive system design. The document discusses lifecycle models like waterfall, spiral, and RAD. It also covers the basic activities in a typical lifecycle.
3. Usability engineering and iterative design are two key concepts in interaction design. Usability engineering specifies usability criteria for evaluation. Iterative design incorporates user feedback through prototyping and
The document discusses interaction design and the design process for interactive systems. It covers:
1. Interaction design focuses on how interactive products communicate with users to make them more useful, usable, and desirable. The design process involves identifying user needs, developing designs, building prototypes, and evaluating designs through iterations.
2. Software engineering principles like software development lifecycles can be applied to interactive system design. The waterfall model involves requirements analysis, design, implementation, testing, and maintenance phases. Iterative design uses prototypes to get user feedback and improve the design.
3. Usability engineering and iterative design are two key concepts in the design process. Usability engineering specifies usability criteria for evaluation. Iterative
The document discusses interaction design and the design process for interactive systems. It covers identifying user requirements, conceptual and physical design, prototyping and evaluation. The design process involves requirements specification, architectural design, detailed design, coding, testing, and maintenance. Iterative design and user evaluation are important to develop an acceptable product. Capturing the design rationale helps communicate decisions and supports reuse.
The document discusses human-computer interaction in the software engineering process. It describes the typical lifecycle of software development, including requirements specification, design, implementation, testing, and maintenance. For interactive systems, a linear waterfall model is not suitable due to the need for extensive user testing and feedback. Usability engineering aims to make usability measurable by specifying requirements. Iterative design and prototyping help overcome incomplete requirements through simulations and prototypes to gather user feedback. Design rationale records the reasons for design decisions to aid communication, reuse of knowledge, and evaluation of tradeoffs.
HCI 3e - Ch 6: HCI in the software processAlan Dix
Chapter 6: HCI in the software process
from
Dix, Finlay, Abowd and Beale (2004).
Human-Computer Interaction, third edition.
Prentice Hall. ISBN 0-13-239864-8.
http://www.hcibook.com/e3/
This presentation is about a lecture I gave within the "Software systems and services" immigration course at the Gran Sasso Science Institute, L'Aquila (Italy): http://cs.gssi.infn.it/.
http://www.ivanomalavolta.com
This presentation is about a lecture I gave within the "Software systems and services" immigration course at the Gran Sasso Science Institute, L'Aquila (Italy): http://cs.gssi.infn.it/.
http://www.ivanomalavolta.com
The document discusses HCI in the system software development lifecycle. It describes several key stages in the lifecycle including requirements specification, architectural design, detailed design, verification and validation. It also discusses usability engineering, iterative design and prototyping techniques, design rationale documentation approaches like IBIS and QOC notations, and capturing psychological design rationale through user testing. The overall goal is to integrate usability considerations throughout the entire software development process from requirements to implementation.
The document discusses information systems development and implementation for e-business systems. It outlines the systems development life cycle and prototyping methodology. It also describes implementation activities like acquisition, testing, training and conversion. Evaluation factors for hardware, software and services are presented, as well as change management solutions for user resistance.
Software Engineering The Multiview Approach And Wisdmguestc990b6
The document provides an overview of web information system development methodology. It discusses key components of information systems and why structured methodologies are important for information system projects. It then describes various software development models including waterfall, iterative, evolutionary, spiral and V-model. Finally, it discusses special considerations for web-based information systems and proposes a socio-technical web information system development methodology called WISDM that takes organizational, technical and human factors into account.
The document provides an overview of web usability and usability testing. It discusses key aspects of usability including learnability, efficiency, memorability, errors, and satisfaction. It outlines why usability is important for websites. Common usability problems are presented such as bad search functions, PDFs for online reading, and fixed font sizes. Methods for assessing usability through evaluations and testing are described. The testing process, roles, methods, and tools are defined. Metrics for measuring effectiveness, efficiency, satisfaction, and learnability are provided. The relationship between usability testing and user-centered design is explained.
The document provides an introduction to software engineering and discusses the software development process, including project management. It describes various software development models like the waterfall model and iterative development. Key aspects of project management are also covered, such as feasibility studies, requirements definition, scheduling techniques, and the role of the project manager.
Introduction to Software Engineering, Software Process, Perspective and Specialized Process Models – Introduction to Agility – Agile process – Extreme programming – XP process - Estimation-FP,LOC and COCOMO I and II,Risk Management, Project Scheduling.
Similar to HSI Implementation in complex systems design (20)
International Upcycling Research Network advisory board meeting 4Kyungeun Sung
Slides used for the International Upcycling Research Network advisory board 4 (last one). The project is based at De Montfort University in Leicester, UK, and funded by the Arts and Humanities Research Council.
Practical eLearning Makeovers for EveryoneBianca Woods
Welcome to Practical eLearning Makeovers for Everyone. In this presentation, we’ll take a look at a bunch of easy-to-use visual design tips and tricks. And we’ll do this by using them to spruce up some eLearning screens that are in dire need of a new look.
5. R&D project complexity in systems
• Time-Budget-Scope
• Technology
• Multi-design teams
• Various disciplines
• Integration
• Costly cycles
6. Some interaction differences
System
• System operator
• Error and malfunction handling
• Different levels of maintenance
• Various interaction points
• Various interaction means
• Asynchronous behavior
Product
• User
• Error and malfunction handling
• Simple maintenance
• Defined HMI
• Eexpected functionality
7. “Our system is very complex, it will take the users
a lot of training and practice to learn how to use it”
Overcome misconceptions
7
8.
9. • Complexity of a system
≠
complex interface
• R&D investment Vs long term costs
• Team commitment to usability
Challenges
Interaction design in
complex systems is an
organizational challenge
10. 3 Foundations of Implementation
Engagement
Methodology
Awareness
11. 3 Foundations of Implementation
Case studies, ROI, management support, experienceAwareness
12. Main benefits
R&D
Solving HFE & ergonomic challenges
Shortening R&D duration
Saving design cycles
Lowering production costs
Product
Simplified operation
Error prevention
Safe working environment
Short training time
Service costs reduction
Satisfied customers
15. Requirements management
an integrative process
System definition – expected performance Task analysis – user’s job
System requirements High level requirements Operational concept
System modeling
System architecture design Detailed design User Interface Definition
Subsystem requirements cross system engagement Implementation
System Integration design dilemma solving UX Intervention
System Validation Usability testing
– system performance – user’s performance.
System Engineer Human Factors Engineer
16. Step II
Functional requirements
Suggested operational concept and
user interface, maintainability approach
Align with system engineering
What are the anticipated user actions?
Operational analysis, Ideation
Step III
Detailed requirements
GUI and physical interfaces Align with sub-system designers
Task analysis, ergonomic analysis
Step IV
Process control
Implementation validation, dilemma
solving
Cross-discipline alignment
Locate conflicts, attend design reviews
Step I
High level system requirements
What are the human factors principles
of the system?
Align with marketing
User research, similar products, older
models feedback
16
21. Teamwork effects
• Simplification of operation
• Clear and consequential operational approach
• Clear and consequential malfunction handling approach
• Subsystems operation
• Coherent interface language
22. How it’s Done?
Set the a team
Define your goals
Identify weaknesses
Deploy methodology
Get involved
Test
23. The art of alignment – Different point of view / Same goal
Enterprise Vs. Start-Up – Find what works for you
Designated team – HFE is not a “by-product”
24. “ If the user can’t use it, it doesn’t work”
Susan Dray
Dray & Associates, Inc
25. Good design is
all about people
Thank you
WWW.EDU-STUDIO.NET
yakir@edu-studio.net