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| Criterion |  Operations Fault Tree Analysis |  Operations Kepner-Tregoe |  Decision Making DACI |  Decision Making RAPID |
|---|---|---|---|---|
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. | For a disturbance that's hard to pin down, the method cleanly separates problem, cause, and decision. It reduces mixing when symptoms allow several interpretations. | 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. | In complex management decisions, clarity is often missing about who recommends, who agrees, and who makes the decision. RAPID creates this assignment and stabilizes decisions across several levels. |
Complexitydifferent | High | High | Low | Medium |
Timedifferent | 2-6 h | 2-8 h | 30-60 min | 45-90 min |
Participantsdifferent | 3-8 | 2-8 | 2-10 | 3-12 |
Formatsame | Workshop + async | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Fault Tree, Critical Paths, Cause Hypotheses, Control Actions | Problem Analysis, Decision Analysis, Risk Plan | DACI Matrix, Decision Owner, Decision Log | RAPID Role Map, Recommendation, Decision Log |
Tagsno overlap | RiskRoot causeSafety | Problem solvingRoot causeDecisionOperations | DecisionRolesGovernanceAlignment | DecisionRolesGovernance |