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Time: Complete the game (Task 1, 2)

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Number of times: The user stepped a wrong row

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Question: given an intention in task 3, check whether the user want to act as we want.

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Survey: Disgust of the experience in usual (1-5)

Survey: Expected disgust of the experience with the prototype (1-5)

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Survey: Annoyance of the experience in usual (1-5)

Survey: Expected annoyance of the experience with the prototype (1-5)

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Survey: Fun of the game (1-5)

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(t_base) Time: Finish throwing without prototype
(t1) Time: (First try) Finish all tasks.
(t2) Time: (Second try) Finish all tasks.

Metric 1: t1 - t_base
Metric 2: t2 - t1

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Can user finish the whole tasks in a short time?

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Do users understand how to play the game?

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Do users understand the recording function?

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Will the system make an experience of throwing food waste less disgusting?

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Will the system make an experience of throwing food waste less annoying? 

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Evaulate whether the prototype is intuitive.

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Evaluate whether user will feel less annoyed when using the system

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Evaluate whether the prototype ease the user burden