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| Criterion |  Decision Making Pre-Mortem |  Operations Barrier Analysis |  Operations Fault Tree Analysis |
|---|---|---|---|
Purposedifferent | 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. | 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. | 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. |
Complexitydifferent | Low | Medium | High |
Timedifferent | 20–45 min | 2-4 h | 2-6 h |
Participantsdifferent | Small cross-functional group | 2-6 | 3-8 |
Formatdifferent | Workshop | Workshop + async | Workshop + async |
Outputdifferent | Risk list, Mitigation plan, Assumption log | Barrier Inventory, Failure Analysis per Barrier, Action Backlog | Fault Tree, Critical Paths, Cause Hypotheses, Control Actions |
Tagsno overlap | RiskDecisionFailurePlanning | Root causeSafetyIncident | RiskRoot causeSafety |
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Methods with strong topical overlap with the current selection, not yet in the comparison.
