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Criterion
How Might We
Innovation
How Might We
Paper illustration of an assumption matrix with prioritized test cards
Decision Making
Assumption Surfacing
Decision Tree method illustration showing its working structure
Decision Making
Decision Tree
Purposedifferent
With a stuck problem carrying many implicit assumptions, the method translates observations into open, workable questions. It sharpens the problem frame without pre-thinking the solution, turning frustration or fuzziness into a search space with clear direction.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 decisions with follow-on paths and dependencies, a linear comparison is often not enough. A Decision Tree shows how options branch under conditions and which consequences hang on each branch.
Complexitydifferent
LowLowMedium
Timedifferent
30–45 min45-90 min30-90 min
Participantsdifferent
1-102-81-6
Formatsame
Workshop + asyncWorkshop + asyncWorkshop + async
Outputdifferent
HMW Questions, Challenge Framing, Idea PromptsAssumption List, Critical Assumptions, Learning PlanDecision Tree, Option Map, Assumption List
Tagsno overlap
FramingOpportunityIdeationQuestions
AssumptionsRiskDecisionDiscovery
DecisionTreeOptions
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Methods with strong topical overlap with the current selection, not yet in the comparison.

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 for Constraint Analysis.
Decision Making
Constraint Analysis
Paper illustration of DIBB with its method-specific working model.
Product Strategy
DIBB
Paper illustration for Impact Filter
Decision Making
Impact Filter