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| Criterion |  Knowledge Modeling IBIS |  Product Discovery Problem Interview |  Product Discovery Assumption Mapping |
|---|---|---|---|
Purposedifferent | IBIS structures thinking about complex questions as a sequence of issues, ideas, and arguments. The method keeps discussions open without forcing them into premature consensus. | When the picture of the problem still needs to become solid, it asks about real situations and consequences. It separates genuine suffering from mere interest in a solution. | When assumptions still sit unordered in the room, it weighs uncertainty against leverage. It makes visible which hypotheses should be checked first. |
Complexitysame | Medium | Medium | Medium |
Timedifferent | 1-3 h | 30-60 min je Interview | 45-60 min |
Participantsdifferent | 2-8 | 5-12 Interviews | 2-8 |
Formatsame | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Issue Map, Positions, Argument Notes | Problem Evidence, Risk Notes, Customer Segments | Assumption map, Test backlog, Risk ranking |
Tagsno overlap | RationaleKnowledgeDecision | DiscoveryInterviewsValidation | AssumptionsRiskExperimentsValidation |
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