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Chapter Eight. Usability Testing > Objectives of Usability Testing

Objectives of Usability Testing

When testing an application, we always keep three questions in mind.

  • What should the test subjects be doing at each point to get their tasks accomplished?

  • What are the test subjects doing at each point, and if they aren't doing the right (or optimal) things, what are they doing?

  • What are the similarities and differences between the mental model of the system that the subject is forming and the mental model that the designer intended?


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