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| Criterion |  Product Discovery Problem Interview |  Systems Thinking Evaporating Cloud |  Product Discovery Solution Interview |  Decision Making Assumption Surfacing |
|---|---|---|---|---|
Purposedifferent | 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. | The method makes visible why two seemingly incompatible demands arise and which assumption must be tested to resolve the conflict. | 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. | 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 | Medium | Medium | Medium | Low |
Timedifferent | 30-60 min je Interview | 60-120 min | 30-60 min je Interview | 45-90 min |
Participantsdifferent | 5-12 Interviews | 2-8 | 5-10 Interviews | 2-8 |
Formatdifferent | Workshop + async | Workshop | Workshop + async | Workshop + async |
Outputdifferent | Problem Evidence, Risk Notes, Customer Segments | Conflict Cloud, Assumption List, Breakthrough Ideas, Next Experiments | Solution Feedback, Objection List, Validation Notes | Assumption List, Critical Assumptions, Learning Plan |
Tagsno overlap | DiscoveryInterviewsValidation | Theory of ConstraintsAssumptionsSystems thinking | ValidationInterviewsPrototype | AssumptionsRiskDecisionDiscovery |