1. Usability
&
the User-Centered Design
Process

2. What are
the most important points
from the reading?
.50 point

3. Usability has 5 dimensions*.
Each dimension can be measured.
Tradeoffs - you can’t have it all.
Novice - expert users - pleasing both
*Learnability. Efficiency. Memorability. Error
prevention & recovery. Satisfaction.

4. http://www.wallsave.com
http://mainda.deviantart.com/art/Skeleton-Cat-261225944

5. Usability
Learnability. Efficiency. Memorability. Error
prevention & recovery. Satisfaction.
User experience
?

6. 3 paradigms
3 User experience: and Things
should be pleasant to use.
Usability: and Things should be
2 easy to use.
1 Engineering: Things should work.

7. How ?

8. User-
centered Launch
design
process Production
ti on
Conceptual u a
l
Design Eva
&
rch
Requirements a
e se
Analysis R

9. Identify users / user groups
Understand user goals & needs
Understand client goals & needs
Technical requirements & limitations
Research previous versions
Research competition
Requirements Conceptual
Production Launch
Analysis Design
Research & Evaluation

10. Brainstorming
Sketches
Mockups, wireframes, prototypes
Prototype evaluation
Information architecture
Requirements Conceptual
Production Launch
Analysis Design
Research & Evaluation

11. Production
Evaluation: usability testing
Requirements Conceptual
Production Launch
Analysis Design
Research & Evaluation

12. Quality assurance
User problem tracking
Requirements Conceptual
Production Launch
Analysis Design
Research & Evaluation

13. iterative
process
users
Next
steps:
Apply process Understanding users