Page 130 - The Design Thinking Playbook

KEY LEARNINGS

Test prototype

• Define scenarios and a clear goal before the test.
• Involve neutral people when conducting the test; namely, people who did not build the prototype.
• Ask simple and open questions in testing; never suggestive questions. Always ask “why” in order to find out the
underlying motivation.
• Don’t design the test to be too long. Concentrate on what is essential.
• Take along groups of stakeholders to the test (e.g., developers), so they can experience user feedback firsthand.
• Let the test persons think aloud and don’t interrupt them. Don’t try to influence them by steering them in one
direction or selling the prototype as a great solution.
• Avoid the pitfall of relating too quickly or too much about how the prototype works.
• Document the tests, and always schedule enough time after a test to integrate the findings into a new proto-
type.
• Use Web-based tools for simple prototypes.
• Perform many qualitative tests with no more than five test persons in each one.

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