Discussion Question Set #3

As you study this week's material, please ponder the following discussion questions. Post your responses in the appropriate threads in WebCT.

1. What are some of the key results of human performance studies that can help inform the design of interactive computer systems?

2. What kinds of memory are there, and what role does memory play in human-computer interaction?

3. As designers, what are some of things we can do to help users prevent and detect/repair errors?

4. Of the three models of human cognition presented in the chapter, which one do you believe is most helpful for designers? Why?

5. What is meant by the notion of a "learning curve?" Is there a mathematical function that characterizes it? What is a "steep" learning curve?

6. Describe your mental model of how an oven thermostat works.

7. Describe one concrete way in which you could apply Fitts' Law to facilitate more efficient human performance in a user interface.