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| Criterion |  Operations Fault Tree Analysis |  Decision Making Pre-Mortem |  Decision Making Decision Rights Mapping |  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 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. | In organizations with many stakeholders, it often blurs who actually decides and who is merely consulted. It separates options, evaluation criteria, and open risks. The result is captured as a Decision Rights matrix and an agreement. | 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 | Low | Medium | Low |
Timedifferent | 2-6 h | 20–45 min | 90-180 min | 30-60 min |
Participantsdifferent | 3-8 | Small cross-functional group | 4-12 | 2-10 |
Formatdifferent | Workshop + async | Workshop | Workshop | Workshop + async |
Outputdifferent | Fault Tree, Critical Paths, Cause Hypotheses, Control Actions | Risk list, Mitigation plan, Assumption log | Decision Rights Matrix, Agreement | DACI Matrix, Decision Owner, Decision Log |
Tagsno overlap | RiskRoot causeSafety | RiskDecisionFailurePlanning | DecisionGovernanceAlignmentResponsibility | DecisionRolesGovernanceAlignment |