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| Criterion |  Product Discovery Problem Interview |  Product Discovery Solution Interview |  Decision Making Trade-off Analysis |  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. | 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. | With limited resources, quality, speed, cost, and risk almost always compete with each other. Trade-off Analysis makes these tensions explicit and prevents decisions from producing hidden side effects. | 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 | 30-60 min je Interview | 45-120 min | 45-90 min |
Participantsdifferent | 5-12 Interviews | 5-10 Interviews | 2-8 | 2-8 |
Formatsame | Workshop + async | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Problem Evidence, Risk Notes, Customer Segments | Solution Feedback, Objection List, Validation Notes | Trade-off Matrix, Criteria List, Decision Rationale, Accepted Downsides | Assumption List, Critical Assumptions, Learning Plan |
Tagsno overlap | DiscoveryInterviewsValidation | ValidationInterviewsPrototype | TradeoffsDecisionCriteriaOptions | AssumptionsRiskDecisionDiscovery |