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| Criterion |  Engineering Failure Scenario Analysis |  Operations Failure Mode and Effects Analysis |  Decision Making Pre-Mortem |  Operations Fishbone Diagram |
|---|---|---|---|---|
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. | For a process, product, or service with noticeable failure risks, the method assesses possible failure modes in advance. It directs attention to combinations of occurrence, effect, and detectability. | 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. | When a problem has several possible contributing factors, the method sorts causes by cause areas. It prevents an initial hunch from blocking the view of other plausible drivers. |
Complexitydifferent | Medium | High | Low | Low |
Timedifferent | 1-3 h | 2-6 h | 20–45 min | 30-60 min |
Participantsdifferent | 3-8 | 3-10 | Small cross-functional group | 2-8 |
Formatsame | Workshop | Workshop | Workshop | Workshop |
Outputdifferent | Failure Scenarios, Risk Notes, Control Gaps, Test and Response Actions | FMEA Table, Risk Priority, Mitigation Actions | Risk list, Mitigation plan, Assumption log | Fishbone Diagram, Cause Categories, Investigation Backlog |
Tagsno overlap | FailureResilienceRisk | RiskQualityOperationsRoot cause | RiskDecisionFailurePlanning | Root causeQualityOperations |