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| Criterion |  Decision Making Assumption Surfacing |  Product Discovery Riskiest Assumption Test |  Product Discovery Test Card |  Product Strategy DIBB |
|---|---|---|---|---|
Purposedifferent | 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. | 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. | The Test Card turns a critical assumption into a testable claim and specifies in advance which result counts as success. | 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. |
Complexitydifferent | Low | Medium | Low | Low |
Timedifferent | 45-90 min | 1-2 Wochen pro Iteration | 20-35 min | 1-2 h |
Participantsdifferent | 2-8 | 2-6 | 1-5 | 2-8 |
Formatsame | Workshop + async | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Assumption List, Critical Assumptions, Learning Plan | Prioritized Assumption List, Test Plan, Results Report | Test Card with a pre-set threshold | DIBB document, Belief list, Bet list, Learning report |
Tagsno overlap | AssumptionsRiskDecisionDiscovery | ExperimentsValidationDiscoveryAssumptions | ExperimentsValidationDiscoveryHypothesis | StrategyDecisionAssumptionsHypothesis |