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| Criterion |  Engineering Failure Scenario Analysis |  Decision Making Pre-Mortem |  Operations 5 Whys |
|---|---|---|---|
Purposedifferent | In critical processes, it is not enough to plan only for the normal case. Failure Scenario Analysis looks at the path into failure and shows which failures, chains, and control gaps cause the most 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. | For a single, hard-to-explain deviation, the method exposes the causal chain behind the visible symptom. It keeps the cause open until a controllable condition emerges instead of a mere description. |
Complexitydifferent | Medium | Low | Low |
Timedifferent | 1-3 h | 20–45 min | 15-30 min |
Participantsdifferent | 3-8 | Small cross-functional group | 2-6 |
Formatsame | Workshop | Workshop | Workshop |
Outputdifferent | Failure Scenarios, Risk Notes, Control Gaps, Test and Response Actions | Risk list, Mitigation plan, Assumption log | Root cause notes, Countermeasures |
Tagsno overlap | FailureResilienceRisk | RiskDecisionFailurePlanning | Root causeIncidentLeanProblem solving |
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