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Criterion
Paper illustration for Solution Interview
Product Discovery
Solution Interview
Gap Analysis method illustration showing its working structure
Business Strategy
GAP Analysis
Paper illustration of an assumption matrix with prioritized test cards
Decision Making
Assumption Surfacing
Purposedifferent
When a solution idea is already on the table, it checks how it is understood and evaluated. It looks for resonance, objections, and missing fit early in the conversation.GAP Analysis compares the current state with a target picture and makes the distance manageable. It becomes useful when, ahead of new initiatives, it must become clear which capabilities, processes, or resources are missing.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.
Complexitydifferent
MediumMediumLow
Timedifferent
30-60 min je Interview1-3 h45-90 min
Participantsdifferent
5-10 Interviews2-82-8
Formatsame
Workshop + asyncWorkshop + asyncWorkshop + async
Outputdifferent
Solution Feedback, Objection List, Validation NotesGap Matrix, Action Plan, Risk NotesAssumption List, Critical Assumptions, Learning Plan
Tagsno overlap
ValidationInterviewsPrototype
StrategyAnalysisPlanning
AssumptionsRiskDecisionDiscovery
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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
A hypothetical failure makes concrete risks, signals, and fitting mitigations visible.
Decision Making
Pre-Mortem
Paper illustration for Problem Interview
Product Discovery
Problem Interview