Double Diamond Model
Updated 2026-08-11
INTRODUCTION
English translation pending.
CORE DEFINITION
The Double Diamond, from the British Design Council, is a process framework of two consecutive diamonds, each a divergence followed by a convergence. The first diamond explores the problem space widely and then converges on a definition of the problem worth solving; the second diverges again to generate solutions and converges on the one to deliver. The ordering carries the claim: projects fail most often not by solving badly but by efficiently solving the wrong problem.
SCAFFOLDING EFFECT
Reduce cognitive load
- Earn the problem: diverge on the problem space before converging on any definition. - Then solve: diverge on solutions only after the problem is fixed. - Gate the diamonds: hold a review at each convergence point.
Anchor fast decisions
Divergence widens the option set before evaluation, and convergence commits only after that set has been sampled, which prevents premature attachment to the first plausible framing. Placing problem definition before solution prevents the efficient execution of an irrelevant brief, and the gate at each diamond's tip makes that commitment explicit rather than accidental.
MINIMUM ACTION
In progress 0/1Practice this model in one real situation:
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Source support: Explicit
- en.wikipedia.orghttps://en.wikipedia.org/wiki/Double_Diamond_(design_process_modelverified
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