Framework

The Dirty Hands Test

Ask where the user's hands physically are before you design the interface.

How it works

  1. 1Ask where the user's hands physically are at the moment your product needs them.
  2. 2If the answer involves raw food, tools, gloves, a steering wheel, or a patient, any phone-based flow is already dead.
  3. 3Move the interface to the thing they are already touching.
  4. 4Kostas's version: cooking and using your phone at the same time is the most annoying thing in the world, and every calorie app requires it.

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