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| Criterion |  Operations Root Cause Analysis |  Systems Thinking Evaporating Cloud |  Operations Failure Mode and Effects Analysis |
|---|---|---|---|
Purposedifferent | 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. | The method makes visible why two seemingly incompatible demands arise and which assumption must be tested to resolve the conflict. | 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 | Medium | High |
Timedifferent | 1-4 h | 60-120 min | 2-6 h |
Participantsdifferent | 3-8 | 2-8 | 3-10 |
Formatdifferent | Workshop + async | Workshop | Workshop |
Outputdifferent | Problem Statement, Cause Hypotheses, Confirmed Causes, Action Plan | Conflict Cloud, Assumption List, Breakthrough Ideas, Next Experiments | FMEA Table, Risk Priority, Mitigation Actions |
Tagsno overlap | Root causeProblem solvingQualityIncident | Theory of ConstraintsAssumptionsSystems thinking | RiskQualityOperationsRoot cause |
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