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Example Prototype

What Don Norman writes

Core Behavioral Principles

  1. ① Affordances – Users infer possible actions from an object's appearance
  2. ② Signifiers – Visible cues communicate where and how to act
  3. ③ Mappings – Controls should mirror their effects in a natural way
  4. ④ Feedback – Every action must produce an immediate, interpretable response

Things to Remember

  1. ◇ People form mental models quickly and rely on prior experience
  2. ◇ Errors usually indicate design flaws, not user failure