1. Usability Testing
Research Design

2. Identify users/audiences
Understand user needs & goals
Requirements
Analysis
Understand client needs & goals
R e s e a r c h
Technical requirements & limitations
Conceptual Research previous versions
Design
Research competition
Mockups & Use cases
Prototypes
Task analysis
Information architecture
Production
Mockup generation
Mockup evaluation
Launch Production
Quality assurance
User problem tracking

3. Identify users/audiences interviews ✥
Understand user needs & goals surveys ✥
Requirements
Analysis
Understand client needs & goals observations
R e s e a r c h
Technical requirements & limitations
Conceptual Research previous versions
Design
Research competition
Mockups & Use cases
Prototypes
Task analysis
✥ card sorting ✥
Information architecture
Production
Mockup generation focus groups ✥ user testing
Mockup evaluation
Launch Production heuristic evaluation ✥ user testing
Quality assurance surveys ✥
User problem tracking observations

4. Usability evaluation methods:
BGW
ch12
Usability inspection
Group walkthrough
Usability testing http://www.clker.com/clipart-15943.html

5. Usability testing
User
Interface
Questionnaires
Observation

6. Sample task:
Find a pink
Hello Kitty
potato peeler
and add it to
your cart

7. Usability Metrics

8. 1 Performance
2 Issue metrics
3 Behavioral
4 Self-reported

9. 1 Performance
Task success Time on task Errors Efficiency
2 Issue metrics
3 Behavioral
4 Self-reported

10. 1 Performance
Task success Time on task Errors Efficiency
2 Issue metrics
Identify Issue Issue Severity
3 Behavioral
4 Self-reported

11. 1 Performance
Task success Time on task Errors Efficiency
2 Issue metrics
Identify Issue Issue Severity
3 Behavioral
Obs:Verbal bhvr Obs: Nonverbal bhvr
4 Self-reported

12. 1 Performance
Task success Time on task Errors Efficiency
2 Issue metrics
Identify Issue Issue Severity
3 Behavioral
Obs:Verbal bhvr Issue Severity
4 Self-reported
Ease Satisfaction Clarity Comprehension etc.

13. The Usability Test

14. 1 Opening
2 Pre-session Questionnaire
3 UT Session: Tasks
4 Post-session Questionnaire

15. 1 Opening
A. Introductions B. Explanation C. IRB D. Qs???
2 Pre-session Questionnaire
3 UT Session: Tasks
4 Post-session Questionnaire

16. 1 Opening
A. Introductions B. Explanation C. IRB D. Qs???
2 Pre-session Questionnaire
Any variables that could influence metrics: demographics,
familiarity, attitudes, etc.
3 UT Session: Tasks
4 Post-session Questionnaire

17. 1 Opening
A. Introductions B. Explanation C. IRB D. Qs???
2 Pre-session Questionnaire
Any variables that could influence metrics: demographics,
familiarity, attitudes, etc.
3 UT Session: Tasks
A. Pre-task questionnaire C. Post-task questionnaire
B. Task D. Post-task interview
4 Post-session Questionnaire

18. 1 Opening
A. Introductions B. Explanation C. IRB D. Qs???
2 Pre-session Questionnaire
Any variables that could influence metrics: demographics,
familiarity, attitudes, etc.
3 UT Session: Tasks
A. Pre-task questionnaire C. Post-task questionnaire
B. Task D. Post-task interview
4 Post-session Questionnaire
A. Satisfaction B. Organization C. Clarity D. Aesthetics

19. Usability testing: Planning
Equipment Questionnaire
Location s
Tasks
Forms