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| Criterion |  Decision Making Pre-Mortem |  Operations Fault Tree Analysis |  Operations ALPEN Method |  Operations Kepner-Tregoe |
|---|---|---|---|---|
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 critical top event with several possible triggers, the method logically models failure paths. It makes visible which combinations of conditions can lead to damage. | With an overloaded day full of too many tasks, a realistic picture of the day emerges. The method connects estimating, deciding, and buffer thinking so planning fits available energy and time. | 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. |
Complexitydifferent | Low | High | Low | High |
Timedifferent | 20–45 min | 2-6 h | 10-20 min daily | 2-8 h |
Participantsdifferent | Small cross-functional group | 3-8 | 1 | 2-8 |
Formatdifferent | Workshop | Workshop + async | Async | Workshop + async |
Outputdifferent | Risk list, Mitigation plan, Assumption log | Fault Tree, Critical Paths, Cause Hypotheses, Control Actions | Daily Plan, Time Estimates, Review Notes | Problem Analysis, Decision Analysis, Risk Plan |
Tagsno overlap | RiskDecisionFailurePlanning | RiskRoot causeSafety | PlanningTime managementProductivityOperations | Problem solvingRoot causeDecisionOperations |