Information Technology Reference
In-Depth Information
CHAPTER 3
Planning
41
CONTENTS
3.1 STUDY GOALS
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3.1.1 Formative Usability
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3.1.2 Summative Usability
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3.2 USER GOALS
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3.2.1 Performance
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3.2.2 Satisfaction
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3.3 CHOOSING THE RIGHT METRICS: TEN TYPES OF
USABILITY STUDIES
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3.3.1 Completing a Transaction
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3.3.2 Comparing Products
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3.3.3 Evaluating Frequent Use of the Same Product
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3.3.4 Evaluating Navigation and/or Information Architecture
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3.3.5 Increasing Awareness
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3.3.6 Problem Discovery
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3.3.7 Maximizing Usability for a Critical Product
50
3.3.8 Creating an Overall Positive User Experience
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3.3.9 Evaluating the Impact of Subtle Changes
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3.3.10 Comparing Alternative Designs
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3.4 EVALUATION METHODS
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3.4.1 Traditional (Moderated) Usability Tests
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3.4.2 Online (Unmoderated) Usability Tests
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3.4.3 Online Surveys
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3.5 OTHER STUDY DETAILS
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3.5.1 Budgets and Timelines
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3.5.2 Participants
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3.5.3 Data Collection
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3.5.4 Data Cleanup
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3.6 SUMMARY
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Preparation is the key to any successful user experience study. If nothing else, it
is hoped this chapter convinces you to plan ahead, particularly where data col-
lection is involved.
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