Overview
Evaluation methods
- Heuristic evaluation
- Cognitive walkthrough (standard and streamlined versions)
- Pluralistic walkthrough
- Usability test
- Exploratory test
- Assessment test
- Validation test
- Comparison test
- Think-aloud variant
- Questionnaires and Subjective Usability Scores
- Interview (e.g. during the debriefing)
- GOMS hierarchical analysis
- GOMS Keystroke level model
- Cognitive modeling
- Automatic methods (e.g. CogTool)
- Remote methods
Characterizing the evaluation methods
- When
- Where
- Level of needed expertise
- Which usability objectives (e.g. Utility, Efficiency, Effectiveness,
Learnability, User Satisfaction)
- Cost (resources, time, number of practitioners)
- Requires human participants?
- Type of method
- Nielsen and Mack categories (automatically, empirically,
formally and informally)
- Direct (e.g. observation) versus indirect (e.g. user
query)
- Level of detail (e.g. broad overview versus focussed specifics)