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Selected:Failure Scenario AnalysisFailure Mode and Effects AnalysisRoot Cause Tree AnalysisRoot Cause Analysis
| Criterion |  Engineering Failure Scenario Analysis |  Operations Failure Mode and Effects Analysis |  Operations Root Cause Tree Analysis |  Operations Root Cause 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. | 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. | For a problem with several suspected causes, the method builds a causal structure instead of a mere list. It makes visible how causes connect and where the strongest points of leverage lie. | When a problem keeps recurring and the cause stays unclear, the method exposes the underlying mechanism. It separates symptom, guess, and robust explanation from one another. |
Complexitydifferent | Medium | High | Medium | Medium |
Timedifferent | 1-3 h | 2-6 h | 1-3 h | 1-4 h |
Participantsdifferent | 3-8 | 3-10 | 2-8 | 3-8 |
Formatdifferent | Workshop | Workshop | Workshop | Workshop + async |
Outputdifferent | Failure Scenarios, Risk Notes, Control Gaps, Test and Response Actions | FMEA Table, Risk Priority, Mitigation Actions | Cause Tree, Evidence Notes, Countermeasures | Problem Statement, Cause Hypotheses, Confirmed Causes, Action Plan |
Tagsno overlap | FailureResilienceRisk | RiskQualityOperationsRoot cause | Root causeTreeIncidentQuality | Root causeProblem solvingQualityIncident |