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| Criterion |  Product Strategy DIBB |  Decision Making Pre-Mortem |  Product Discovery Test Card |  Decision Making Assumption Surfacing |
|---|---|---|---|---|
Purposedifferent | 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. | 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. |
Complexitysame | Low | Low | Low | Low |
Timedifferent | 1-2 h | 20–45 min | 20-35 min | 45-90 min |
Participantsdifferent | 2-8 | Small cross-functional group | 1-5 | 2-8 |
Formatdifferent | Workshop + async | Workshop | Workshop + async | Workshop + async |
Outputdifferent | DIBB document, Belief list, Bet list, Learning report | Risk list, Mitigation plan, Assumption log | Test Card with a pre-set threshold | Assumption List, Critical Assumptions, Learning Plan |
Tagsno overlap | StrategyDecisionAssumptionsHypothesis | RiskDecisionFailurePlanning | ExperimentsValidationDiscoveryHypothesis | AssumptionsRiskDecisionDiscovery |