1. 15. Human-Computer Interaction

2. THE TROUBLE WITH COMPUTERS AND SOFTWARE DESIGN

3. Design Criteria for Usable Software
Efficiency
Accuracy
Learnability
Memorability
satisfaction

4. SOFTWARE DESIGN CYCLE: UNDERSTAND, DESIGN, AND EVALUATE

6. UNDERSTAND SYSTEM AND USER CHARACTERISTICS

7. Functionality -- creeping featurism
Balance btn functionality and ease of use
Frequency of use
Mandatory vs. discretionary use
The knowledge level of the user

8. DESIGN USING THEORIES AND MODELS

9. Seven Stages of Action (Norman, 1986)
Figure 15.2
Bridging the gulf of execution and gulf of evaluation

10. Models of User Performance for Design: GOMS
Card, Moran, & Newell (1983)
Model Human Processor

11. Models of User Performance for Design: GOMS

13. DESIGN TO SUPPORT MENTAL MODELS WITH CONCEPTUAL MODELS AND METAPHORS

14. Making invisible parts and processes visible to the user
Providing feedback
Building in consistency
Presenting functionality through a familiar metaphor

15. DESIGN USING PRINCIPLES AND GUIDELINES

16. General Usability Guidelines

17. Basic Screen Design Dialog Style Menus Fill-in forms Question-answer
Command language
Function keys
Direct manipulation
Natural language

18. DESIGN OF USER SUPPORT

19. EVALUATE WITH USABILITY HEURISTICS

20. EVALUATE WITH USABILITY TESTS AND METRICS

21. Prototypes
Usability Metrics

22. Number of Users and Data Interpretation
Pitfalls of Usability Testing

23. INFORMATION TECHNOLOGY

24. Hypertext, Hypermedia, and the Internet Information Database Access
Mediated retrieval
Intelligent agents
Spatially organized database
Virtual and Augmented Reality
Affective Computing