Cognitive Scaffold

Preparing your thinking workspace

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MENTAL MODEL · M11185

MECE

MECE
CollaborateHigh supportConsulting Methods
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Version 1.0.0 · Updated 2026-07-30

CORE DEFINITION

Mutually Exclusive: The parts do not overlap. Collectively Exhaustive: All parts together cover the whole.

SCAFFOLDING EFFECT

psychology

Reduce cognitive load

Decomposition without omission or duplication. A core McKinsey method, ensuring that problem decomposition or classification is neither omitted nor duplicated, and is the foundation of structured thinking.

anchor

Anchor fast decisions

MECE: The elements are decomposed so that they do not overlap and together are exhaustive, making the structure clear, without crossing or gaps.

MINIMUM ACTION

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Source support: Explicit

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