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| Criterion |  Product Discovery Solution Interview |  Decision Making Assumption Surfacing |  Product Strategy DIBB |  Product Discovery Riskiest Assumption Test |
|---|---|---|---|---|
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. | 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. | DIBB helps clarify target groups, value, goals, and priorities by making the logic behind a decision explicit. It captures results as a DIBB document, belief list, bet list, and learning report. | When an idea hinges on one critical unknown, it prioritizes testing that exact piece of uncertainty first. It separates problem, assumption, solution, and evidence. The result is captured as a prioritized list of assumptions, a test plan, and a result report. |
Complexitydifferent | Medium | Low | Low | Medium |
Timedifferent | 30-60 min je Interview | 45-90 min | 1-2 h | 1-2 Wochen pro Iteration |
Participantsdifferent | 5-10 Interviews | 2-8 | 2-8 | 2-6 |
Formatsame | Workshop + async | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Solution Feedback, Objection List, Validation Notes | Assumption List, Critical Assumptions, Learning Plan | DIBB document, Belief list, Bet list, Learning report | Prioritized Assumption List, Test Plan, Results Report |
Tagsno overlap | ValidationInterviewsPrototype | AssumptionsRiskDecisionDiscovery | StrategyDecisionAssumptionsHypothesis | ExperimentsValidationDiscoveryAssumptions |