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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
Paper illustration for Opportunity Interview
Product Discovery
Opportunity Interview
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.When opportunities are still hidden behind signals of need, it structures conversations around needs and obstacles. It looks for patterns that lead to new product opportunities.
Complexitydifferent
LowLowMedium
Timedifferent
30–45 min45-90 min30-60 min je Interview
Participantsdifferent
1-102-85-12 Interviews
Formatsame
Workshop + asyncWorkshop + asyncWorkshop + async
Outputdifferent
HMW Questions, Challenge Framing, Idea PromptsAssumption List, Critical Assumptions, Learning PlanInterview Notes, Opportunity Themes, Customer Quotes
Tagsno overlap
FramingOpportunityIdeationQuestions
AssumptionsRiskDecisionDiscovery
DiscoveryInterviewsOpportunityCustomer
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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 of DIBB with its method-specific working model.
Product Strategy
DIBB
Paper illustration for Impact Filter
Decision Making
Impact Filter
Paper illustration of a branching tree with an outcome at its root, customer opportunities, solution options and small experiment cards.
Product Discovery
Opportunity Solution Tree