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The Pocket Universal Methods of Design by Bella Martin, Bruce Hanington

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094 Usability Testing

An evaluative method to observe a user’s task-based experience with a digital applications

• Identifies frustrating and confusing parts of an interface so that they can be fixed and retested prior to launch.

• Typically employs Think-Aloud Protocol, detecting problems by observing instances where the user:

1. Understands the task but can’t complete it within a reasonable amount of time

2. Understands the goal, but has to try different approaches to complete the task

3. Gives up or resigns from the process

4. Completes a task, but not the specified task

5. Expresses surprise or delight

6. Expresses frustration, confusion, or blames themselves for not being able to complete the task

7. Asserts that something is wrong or doesn’t ...

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