Cognitive Scaffold

Preparing your thinking workspace

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MENTAL MODEL · M0496

Norman Door

Norman Door
BusinessHigh supportManagement
Included
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Version 1.0.0 · Updated 2026-07-30

CORE DEFINITION

A door that is so poorly designed that one cannot tell at a glance whether to push or pull. Named after Don Norman.

SCAFFOLDING EFFECT

psychology

Reduce cognitive load

Identify missing affordances. If a product requires a 'push here' label, that is a design failure. As a scaffold, it is used to examine any interaction (including management processes): if users/employees always do it wrong, it is a design problem with the 'door', not a people problem.

anchor

Anchor fast decisions

When the affordance and signifier of an interactive object are missing, users cannot intuitively figure out how to operate it and must rely on external instructions—this is a signal of design failure.

MINIMUM ACTION

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Practice this model in one real situation:

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Source support: Explicit

  • link
    en.wikipedia.orghttps://en.wikipedia.org/wiki/The_Design_of_Everyday_ThingsZH · Explicit
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