Usability testing involves identifying users, understanding their needs and goals as well as client needs. It includes conceptual design research, prototyping, and production testing. Methods include interviews, surveys, observations, card sorting, focus groups and user testing. Tests involve an opening, pre-session questionnaire, tasks with pre and post task questionnaires, and a post-session questionnaire to collect performance, issue, behavioral and self-reported metrics. Planning considers equipment, location, questionnaires, tasks and forms.

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