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| Criterion |  Operations Fault Tree Analysis |  Decision Making DACI |  Product Discovery Assumption Mapping |
|---|---|---|---|
Purposedifferent | For a critical top event with several possible triggers, the method logically models failure paths. It makes visible which combinations of conditions can lead to damage. | In cross-functional decisions, responsibilities quickly blur between approval, influence, and execution. DACI arranges these roles so decision pressure, contribution, and information stay cleanly separated. | When assumptions still sit unordered in the room, it weighs uncertainty against leverage. It makes visible which hypotheses should be checked first. |
Complexitydifferent | High | Low | Medium |
Timedifferent | 2-6 h | 30-60 min | 45-60 min |
Participantsdifferent | 3-8 | 2-10 | 2-8 |
Formatsame | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Fault Tree, Critical Paths, Cause Hypotheses, Control Actions | DACI Matrix, Decision Owner, Decision Log | Assumption map, Test backlog, Risk ranking |
Tagsno overlap | RiskRoot causeSafety | DecisionRolesGovernanceAlignment | AssumptionsRiskExperimentsValidation |
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