Part 1: Discussion Questions

1. Consulting the modified/enhanced UID process we discussed in class, briefly describe the UI evaluation activities that can be performed before system implementation, and discuss the importance of these activities in refining/improving UI designs and design prototypes.
2. Discuss the similarities and differences between UCD and PD. Choose two I.S. (interaction styles), and discuss how UCD and/or PD can be used in designing/implementing UI in each of these individual I.S.
3. Compare the relative advantages and disadvantages amoung 1) user surveys, 2) expert review, and 3) usability testing. In addition, compare the usability metrics that can be used for/during these activities and the data (quantitive or qualitative? subjective or objective? be as specific as you can here) required to measure usability using such metrics.

Part 2: UI Design and Evaluation

You may choose to work with the system you selected for hw#1 before, or pick a different system. Now perform the following for this system:

1. Design a usability testing strategy to test/ensure the usability of this system
2. Define your usability metrics.
3. Determine what data to collect and calculate the system usability based on these data. You can make up some sample data to illustrate your approach.

Due Date: