6.3 Think Aloud
discovering what people are thinking as they use your sketched interface
Chapter 6.1 showed how you can uncover a person’s initial mental model formed when he or she sees your sketched system for the first time. Yet that technique does not reveal how that person’s view of your system unfolds as he or she actually tries to use it.
Materials
• task description
• sketches to match the task flow
• video recording equipment to capture user actions and talk
• one or more test users
Passive observation is one simple but not particularly effective method. The idea is that you introduce the sketched system to a person, and then you observe how that person uses it. Observation lets you see the person’s physical acts. From these, you ...
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