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| Criterion |  Decision Making Assumption Surfacing |  Product Strategy DIBB |  Architecture Architecture Decision Record |  Product Discovery Assumption Mapping |
|---|---|---|---|---|
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. | 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. | An ADR permanently records an architecture decision with context, trade-offs, and consequence. It creates continuity for later changes because the decision path stays traceable. | When assumptions still sit unordered in the room, it weighs uncertainty against leverage. It makes visible which hypotheses should be checked first. |
Complexitydifferent | Low | Low | Low | Medium |
Timedifferent | 45-90 min | 1-2 h | 15-45 min | 45-60 min |
Participantsdifferent | 2-8 | 2-8 | 1-3 | 2-8 |
Formatdifferent | Workshop + async | Workshop + async | Async | Workshop + async |
Outputdifferent | Assumption List, Critical Assumptions, Learning Plan | DIBB document, Belief list, Bet list, Learning report | ADR File, Decision Log, Rationale | Assumption map, Test backlog, Risk ranking |
Tagsno overlap | AssumptionsRiskDecisionDiscovery | StrategyDecisionAssumptionsHypothesis | ArchitectureRationaleDocumentationGovernance | AssumptionsRiskExperimentsValidation |