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| Criterion |  Engineering Failure Scenario Analysis |  Operations Fishbone Diagram |  Decision Making Pre-Mortem |  Operations Failure Mode and Effects Analysis |
|---|---|---|---|---|
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. | 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. | 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 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. |
Complexitydifferent | Medium | Low | Low | High |
Timedifferent | 1-3 h | 30-60 min | 20–45 min | 2-6 h |
Participantsdifferent | 3-8 | 2-8 | Small cross-functional group | 3-10 |
Formatsame | Workshop | Workshop | Workshop | Workshop |
Outputdifferent | Failure Scenarios, Risk Notes, Control Gaps, Test and Response Actions | Fishbone Diagram, Cause Categories, Investigation Backlog | Risk list, Mitigation plan, Assumption log | FMEA Table, Risk Priority, Mitigation Actions |
Tagsno overlap | FailureResilienceRisk | Root causeQualityOperations | RiskDecisionFailurePlanning | RiskQualityOperationsRoot cause |