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| Criterion |  Product Discovery Assumption Mapping |  Product Strategy DIBB |  Decision Making Pre-Mortem |  Product Discovery Test Card |
|---|---|---|---|---|
Purposedifferent | When assumptions still sit unordered in the room, it weighs uncertainty against leverage. It makes visible which hypotheses should be checked first. | 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. | In early initiatives with many uncertainties, planning quickly turns too optimistic. A pre-mortem makes the expected failure visible in advance and sharpens the view of causes, gaps, and countermeasures. | The Test Card turns a critical assumption into a testable claim and specifies in advance which result counts as success. |
Complexitydifferent | Medium | Low | Low | Low |
Timedifferent | 45-60 min | 1-2 h | 20–45 min | 20-35 min |
Participantsdifferent | 2-8 | 2-8 | Small cross-functional group | 1-5 |
Formatdifferent | Workshop + async | Workshop + async | Workshop | Workshop + async |
Outputdifferent | Assumption map, Test backlog, Risk ranking | DIBB document, Belief list, Bet list, Learning report | Risk list, Mitigation plan, Assumption log | Test Card with a pre-set threshold |
Tagsno overlap | AssumptionsRiskExperimentsValidation | StrategyDecisionAssumptionsHypothesis | RiskDecisionFailurePlanning | ExperimentsValidationDiscoveryHypothesis |