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| Criterion |  Engineering Failure Scenario Analysis |  Operations Causal Factor Analysis |  Decision Making Constraint Analysis |  Decision Making Pre-Mortem |
|---|---|---|---|---|
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 an event with a complicated course, the method breaks down the contributing factors along the timeline. It shows how conditions, decisions, and reactions together produce a course of events. | When an initiative stalls, the limit often lies not in the idea but in hard or soft boundary conditions. Constraint Analysis separates these limits and shows which of them can actually be shaped. | 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. |
Complexitydifferent | Medium | High | Low | Low |
Timedifferent | 1-3 h | 2-6 h | 30-90 min | 20–45 min |
Participantsdifferent | 3-8 | 3-10 | 2-8 | Small cross-functional group |
Formatdifferent | Workshop | Workshop + async | Workshop + async | Workshop |
Outputdifferent | Failure Scenarios, Risk Notes, Control Gaps, Test and Response Actions | Event Timeline, Causal Factor Chart, Cause List, Corrective Actions | Constraint List, Hard/Soft Classification, Option Impact Notes, Decision Boundaries | Risk list, Mitigation plan, Assumption log |
Tagsno overlap | FailureResilienceRisk | CausalityIncidentRoot causeTimeline | ConstraintsDecisionPlanningOptions | RiskDecisionFailurePlanning |