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| Criterion |  Operations Fault Tree Analysis |  Decision Making Constraint Analysis |  Operations MORT Analysis |  Decision Making Pre-Mortem |
|---|---|---|---|---|
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. | When an initiative stalls, the limit often lies not in the idea but in hard or soft boundary conditions. Constraint Analysis separates these limits and shows which of them can actually be shaped. | For a safety-relevant event or a system with high protection requirements, the method examines where controls failed. It exposes both technical and organizational gaps. | 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. |
Complexitydifferent | High | Low | High | Low |
Timedifferent | 2-6 h | 30-90 min | Mehrere Tage bis Wochen | 20–45 min |
Participantsdifferent | 3-8 | 2-8 | 2-6 | Small cross-functional group |
Formatdifferent | Workshop + async | Workshop + async | Workshop + async | Workshop |
Outputdifferent | Fault Tree, Critical Paths, Cause Hypotheses, Control Actions | Constraint List, Hard/Soft Classification, Option Impact Notes, Decision Boundaries | MORT Worksheets, Findings per Branch, Corrective Actions, Systemic Recommendations | Risk list, Mitigation plan, Assumption log |
Tagsno overlap | RiskRoot causeSafety | ConstraintsDecisionPlanningOptions | Root causeSafetySystemicIncident | RiskDecisionFailurePlanning |