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Criterion
Paper illustration of an assumption matrix with prioritized test cards
Decision Making
Assumption Surfacing
Paper illustration for TRIZ
Innovation
TRIZ
Purposedifferent
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.For technical contradictions or trade-offs, the method looks for solutions that resolve opposing requirements at the same time. It translates limits into an explicit picture of conflict that becomes workable. This produces not just compromises but more elegant principles.
Complexitydifferent
LowHigh
Timedifferent
45-90 min1-4 h
Participantssame
2-82-8
Formatsame
Workshop + asyncWorkshop + async
Outputdifferent
Assumption List, Critical Assumptions, Learning PlanContradiction Statement, Inventive Principles, Solution Concepts
Tagsno overlap
AssumptionsRiskDecisionDiscovery
InnovationProblem solvingContradictionsCreativity
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Often compared together

Methods with strong topical overlap with the current selection, not yet in the comparison.

Paper illustration for Contradiction Analysis.
Innovation
Contradiction Analysis
Paper illustration of a calm four-quadrant Assumption Map with hypothesis cards and emphasis on important assumptions with little evidence.
Product Discovery
Assumption Mapping
Paper illustration of the Lightning Decision Jam working structure.
Facilitation
Decision Jam
Paper illustration of DIBB with its method-specific working model.
Product Strategy
DIBB