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| Criterion |  Engineering Failure Scenario Analysis |  Systems Thinking Current Reality Tree |  Decision Making Pre-Mortem |  Operations Causal Factor 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. | A Current Reality Tree condenses many symptoms into a few causal chains. The method makes visible which core problems drive several negative effects at once. | 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 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. |
Complexitydifferent | Medium | High | Low | High |
Timedifferent | 1-3 h | 2-6 h | 20–45 min | 2-6 h |
Participantsdifferent | 3-8 | 3-8 | Small cross-functional group | 3-10 |
Formatdifferent | Workshop | Workshop | Workshop | Workshop + async |
Outputdifferent | Failure Scenarios, Risk Notes, Control Gaps, Test and Response Actions | Current Reality Tree, Core Problems, Intervention Ideas | Risk list, Mitigation plan, Assumption log | Event Timeline, Causal Factor Chart, Cause List, Corrective Actions |
Tagsno overlap | FailureResilienceRisk | Systems thinkingRoot causeConstraintsCausality | RiskDecisionFailurePlanning | CausalityIncidentRoot causeTimeline |