An Introduction to Usability,9780748407620

An Introduction to Usability

by ;
Edition: 1st
ISBN13: 9780748407620
ISBN10: 0748407626
Format: Nonspecific Binding
Pub. Date: 1998-01-20
Publisher(s): CRC PRESS
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Summary

This work gives a broad introductory overview of the topic of usability. Firstly, usability is defined and a framework for identifying different aspects of usability is given. The main principles for creating usable designs are expounded, followed by practical advice as to how to design usable products. The book then tackles the issue of usability evaluation - a series of evaluation methods are described, followed by practical advice as to how to conduct the evaluation.; The book draws on examples from software design and product design generally. This means whilst human-computer interaction HCI is a central issue in the book, other usability issues are also covered.

Table of Contents

Acknowledgements ix
Introduction
1(4)
Usability
1(1)
Aim and Contents of the Book
2(1)
Scope of the Book and Limitations
2(1)
Who is the Book for?
3(2)
What is Usability?
5(20)
Concept and Definition
5(6)
The effect of user characteristics on usability
8(3)
The Components of Usability
11(5)
Guessability
11(1)
Learnability
12(1)
Experienced user performance (EUP)
13(1)
System potential
14(1)
Re-usability
15(1)
Why Usability is Important
16(2)
Annoyance
16(1)
Financial implications (product sales)
16(1)
Financial implications (productivity)
17(1)
Safety
17(1)
Measures of Usability
18(7)
Effectiveness: the extent to which a goal, or task, is achieved
18(1)
Efficiency: the amount of effort required to accomplish a goal
19(4)
Satisfaction: the level of comfort that the user feels when using a product and how acceptable the product is to users as a vehicle for achieving their goals
23(2)
Principles of Usable Design
25(14)
Consistency
25(1)
Compatibility
26(1)
Consideration of User Resources
27(2)
Feedback
29(1)
Error Prevention and Recovery
30(1)
User Control
31(2)
Visual Clarity
33(1)
Prioritisation of Functionality and Information
34(1)
Appropriate Transfer of Technology
35(2)
Explicitness
37(2)
Designing for Usability
39(12)
Specifying User Characteristics
39(5)
Physical characteristics
40(1)
Cognitive characteristics
41(3)
Requirements Capture
44(2)
Usability Specification
46(1)
Iterative Design and Prototyping
47(4)
Product specification
47(1)
Visual prototypes
48(1)
Models
48(1)
Screen-based interactive prototypes
48(1)
Fully working prototypes
49(2)
Methods for Usability Evaluation
51(30)
Empirical Methods
52(21)
Private camera conversations
52(1)
Co-discovery
53(2)
Focus groups
55(2)
User workshops
57(1)
Think aloud protocols
57(2)
Incident diaries
59(1)
Feature checklists
60(1)
Logging use
61(2)
Field observation
63(2)
Questionnaires
65(3)
Interviews
68(2)
Valuation method
70(1)
Controlled experiments
71(2)
Non-Empirical Methods
73(8)
Task analyses
73(3)
Property checklists
76(1)
Expert appraisals
77(2)
Cognitive walkthroughs
79(2)
Conducting a Usability Evaluation
81(24)
Purpose of the Evaluation
81(3)
Evaluating initial concepts
82(1)
Developing a concept
82(1)
Testing a design
83(1)
Evaluating a finished product
83(1)
Selecting Evaluation Participants
84(3)
No participants
84(1)
Colleagues
84(1)
Representative sample
85(1)
Real end-users
86(1)
The entire user population
86(1)
Type of Data Required
87(2)
Quantitative data
87(1)
Qualitative data
88(1)
Constraints and Opportunities
89(4)
Deadlines
89(1)
Investigator time
90(1)
Participant time
90(1)
Money available
91(1)
Investigator knowledge
91(1)
Participants available
91(1)
Facilities and resources
92(1)
Reporting the Evaluation
93(5)
Written reports
94(2)
Verbal presentations
96(1)
Video presentations
96(1)
Getting evaluation findings implemented
97(1)
Case Study: Evaluating a Software-Based Statistics Package
98(7)
Scenario
98(1)
Purpose of the evaluation
98(1)
Constraints and opportunities
98(1)
Questions for the evaluation
98(1)
Approach to answering questions
99(1)
Data needed
99(1)
Methods to be used
100(2)
Answering the research questions
102(2)
Reporting the study
104(1)
Conclusions
105(2)
References 107(4)
Index 111

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