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Criterion
Paper illustration for Reverse Brainstorming
Innovation
Reverse Brainstorming
Paper illustration of an assumption matrix with prioritized test cards
Decision Making
Assumption Surfacing
Purposedifferent
For persistent errors or blockages, the method shifts the view to the opposite of the desired effect. It exposes the mechanics of failure and makes hidden causes easier to grasp. This makes improvement more concrete and the problem clearer.Plans often contain assumptions that were never openly stated and remain dangerous precisely because of that. Assumption Surfacing makes these silent premises visible and prioritizes which of them carry the initiative or could sink it.
Complexitysame
LowLow
Timedifferent
30-60 min45-90 min
Participantsdifferent
3-122-8
Formatdifferent
WorkshopWorkshop + async
Outputdifferent
Reverse Ideas, Risk Themes, Solution IdeasAssumption List, Critical Assumptions, Learning Plan
Tags1 shared
BrainstormingIdeationCreativityRisk
AssumptionsRiskDecisionDiscovery
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Methods with strong topical overlap with the current selection, not yet in the comparison.

A paper-based illustration representing Brainstorming with its core stages and visible working result.
Innovation
Brainstorming
Paper illustration of the Lotus Blossom working structure.
Innovation
Lotus Blossom
Paper illustration of Rolestorming with its method-specific working model.
Innovation
Rolestorming
Paper illustration for Round Robin Brainstorming
Innovation
Round Robin Brainstorming