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| Criterion |  Operations Fault Tree Analysis |  Decision Making RAPID |  Operations Barrier Analysis |  Decision Making DACI |
|---|---|---|---|---|
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 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. | For a risk that can only be managed through multiple layers of protection, the method examines the effectiveness of each barrier. It shows where safeguards are missing, too weak, or fail under real conditions. | 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. |
Complexitydifferent | High | Medium | Medium | Low |
Timedifferent | 2-6 h | 45-90 min | 2-4 h | 30-60 min |
Participantsdifferent | 3-8 | 3-12 | 2-6 | 2-10 |
Formatsame | Workshop + async | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Fault Tree, Critical Paths, Cause Hypotheses, Control Actions | RAPID Role Map, Recommendation, Decision Log | Barrier Inventory, Failure Analysis per Barrier, Action Backlog | DACI Matrix, Decision Owner, Decision Log |
Tagsno overlap | RiskRoot causeSafety | DecisionRolesGovernance | Root causeSafetyIncident | DecisionRolesGovernanceAlignment |