SoftBank Pepper Manual page 66

05 | Pepper is easy to use
Test your application with many users
WHY?
HOW?
EXAMPLE
www.SoftBankRobotics.com
When users don't understand or fail at following the flow,
it's often because of a missing sign, missing feedback, or a
missing fallback.
To identify any missing signs, feedback, or fallbacks in the
application, test it with target users at different steps: proof
of concept, in development, and after release. Use a cross-
section of people unfamiliar with the project from different
ages and genders.
For a usability test, eight users are needed to detect 90% of
the usability issues.
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