You are previewing INTERACTION DESIGN: beyond human-computer interaction, 3rd Edition.

INTERACTION DESIGN: beyond human-computer interaction, 3rd Edition

Cover of INTERACTION DESIGN: beyond human-computer interaction, 3rd Edition by Yvonne Rogers... Published by John Wiley & Sons
  1. Cover Page
  2. Title Page
  3. Copyright
  4. Contents
  5. What's Inside
  6. Acknowledgments
  7. About the Authors
  8. Chapter 1: WHAT IS INTERACTION DESIGN?
    1. 1.1 Introduction
    2. 1.2 Good and Poor Design
    3. 1.3 What Is Interaction Design?
    4. 1.4 The User Experience
    5. 1.5 The Process of Interaction Design
    6. 1.6 Interaction Design and the User Experience
    7. Further Reading
  9. Chapter 2: UNDERSTANDING AND CONCEPTUALIZING INTERACTION
    1. 2.1 Introduction
    2. 2.2 Understanding the Problem Space and Conceptualizing Design
    3. 2.3 Conceptual Models
    4. 2.4 Interface Metaphors
    5. 2.5 Interaction Types
    6. 2.6 Paradigms, Theories, Models, and Frameworks
    7. Further Reading
  10. Chapter 3: COGNITIVE ASPECTS
    1. 3.1 Introduction
    2. 3.2 What Is Cognition?
    3. 3.3 Cognitive Frameworks
    4. Further Reading
  11. Chapter 4: SOCIAL INTERACTION
    1. 4.1 Introduction
    2. 4.2 Being Social
    3. 4.3 Face-to-Face Conversations
    4. 4.4 Remote Conversations
    5. 4.5 Telepresence
    6. 4.6 Co-presence
    7. 4.7 Emergent Social Phenomena
    8. Further Reading
  12. Chapter 5: EMOTIONAL INTERACTION
    1. 5.1 Introduction
    2. 5.2 Emotions and the User Experience
    3. 5.3 Expressive Interfaces
    4. 5.4 Frustrating Interfaces
    5. 5.5 Persuasive Technologies and Behavioral Change
    6. 5.6 Anthropomorphism and Zoomorphism
    7. 5.7 Models of Emotion
    8. Further Reading
  13. Chapter 6: INTERFACES
    1. 6.1 Introduction
    2. 6.2 Interface Types
    3. 6.3 Natural User Interfaces
    4. 6.4 Which Interface?
    5. Further Reading
  14. Chapter 7: DATA GATHERING
    1. 7.1 Introduction
    2. 7.2 Five Key Issues
    3. 7.4 Interviews
    4. 7.5 Questionnaires
    5. 7.6 Observation
    6. 7.7 Choosing and Combining Techniques
    7. Further Reading
  15. Chapter 8: DATA ANALYSIS, INTERPRETATION, AND PRESENTATION
    1. 8.1 Introduction
    2. 8.2 Qualitative and Quantitative
    3. 8.3 Simple Quantitative Analysis
    4. 8.4 Simple Qualitative Analysis
    5. 8.5 Tools to Support Data Analysis
    6. 8.6 Using Theoretical Frameworks
    7. 8.7 Presenting the Findings
    8. Further Reading
  16. Chapter 9: THE PROCESS OF INTERACTION DESIGN
    1. 9.1 Introduction
    2. 9.2 What Is Involved in Interaction Design?
    3. 9.3 Some Practical Issues
    4. Further Reading
  17. Chapter 10: ESTABLISHING REQUIREMENTS
    1. 10.1 Introduction
    2. 10.2 What, How, and Why?
    3. 10.3 What Are Requirements?
    4. 10.4 Data Gathering for Requirements
    5. 10.5 Data Analysis, Interpretation, and Presentation
    6. 10.6 Task Description
    7. 10.7 Task Analysis
    8. Further Reading
  18. Chapter 11: DESIGN, PROTOTYPING, AND CONSTRUCTION
    1. 11.1 Introduction
    2. 11.2 Prototyping and Construction
    3. 11.3 Conceptual Design: Moving from Requirements to First Design
    4. 11.4 Physical Design: Getting Concrete
    5. 11.5 Using Scenarios in Design
    6. 11.6 Using Prototypes in Design
    7. 11.7 Support for Design
    8. Further Reading
  19. Chapter 12: INTRODUCING EVALUATION
    1. 12.1 Introduction
    2. 12.2 The Why, What, Where, and When of Evaluation
    3. 12.3 Types of Evaluation
    4. 12.4 Evaluation Case Studies
    5. 12.5 What Did We Learn from the Case Studies?
    6. Further Reading
  20. Chapter 13: AN EVALUATION FRAMEWORK
    1. 13.1 Introduction
    2. 13.2 DECIDE: A Framework to Guide Evaluation
    3. Further Reading
  21. Chapter 14: EVALUATION STUDIES: FROM CONTROLLED TO NATURAL SETTINGS
    1. 14.1 Introduction
    2. 14.2 Usability Testing
    3. 14.3 Conducting Experiments
    4. 14.4 Field Studies
    5. Further Reading
  22. Chapter 15: EVALUATION: INSPECTIONS, ANALYTICS, AND MODELS
    1. 15.1 Introduction
    2. 15.2 Inspections: Heuristic Evaluation and Walkthroughs
    3. 15.3 Analytics
    4. 15.4 Predictive Models
    5. Further Reading
  23. References
  24. Credits
  25. Index
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Chapter 13

AN EVALUATION FRAMEWORK

  • 13.1 Introduction
  • 13.2 DECIDE: A Framework to Guide Evaluation

Objectives

The main aims of this chapter are to:

  • Introduce and explain the DECIDE framework.
  • Discuss the conceptual, practical, and ethical issues involved in evaluation.

13.1 Introduction

As products evolve from initial ideas through conceptual design and prototypes, iterative cycles of design and evaluation help to ensure that they meet users' needs. However, deciding when and how to evaluate a product requires careful consideration and may be different for different kinds of products. This can be challenging given the rapid development of a wide variety of mobile and distributed systems.

The design process starts with the designers working to develop a product that meets users' requirements, but understanding requirements tends to happen by a process of negotiation between designers and users over a period of time. As designers understand users' needs better, their designs reflect this understanding. Similarly, as users see and experience design ideas, they are able to give better feedback that enables the designers to improve their designs. The process is cyclical, with evaluation facilitating understanding between designers and users.

Evaluation is driven by questions about how well the design or particular aspects of it satisfy requirements and offer appropriate user experiences. Some of these questions provide high-level goals to guide the evaluation. For example, does ...

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