1. Part 4: Evaluation Chapter 20: Why evaluate? Chapter 21: Deciding on what to evaluate: the strategy Chapter 22: Planning who, what, where, and when Chapter 23: Deciding how to collect data Chapter 24: Final preparations for the evaluation Chapter 25: Analysis and interpretation of user-observation evaluation data Chapter 26: Inspections of the User Interface Chapter 27: Variations and more comprehensive evaluations

2. Why Evaluate? Why evaluate the usability of user interface designs?

3. Definition of Usability Effective Efficient Engaging Error Tolerant Easy to Learn

4. Techniques for Usability Evaluations User Observations Inspections of the User Interface

5. Strategy 1.What is the purpose of the evaluation? 2.What data do you need to collect? 3.What product, system, or prototype are you testing? 4.What constraints do you have? 5.Which users will you choose? 6.What tasks will you ask the participants to try? 7.Where will you do the evaluation?

6. Type of Data to Collect Quantitative Qualitative