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| Criterion |  Decision Making Wideband Delphi |  Operations Failure Mode and Effects Analysis |  Operations Root Cause Analysis |
|---|---|---|---|
Purposedifferent | A single opinion rarely holds up for planning when the future is genuinely uncertain. It separates options, evaluation criteria, and open risks. The result is captured as an Estimate Range, Assumption Log, and Expert Consensus Notes. | 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. | 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 | High | High | Medium |
Timedifferent | 1-4 h or multiple rounds | 2-6 h | 1-4 h |
Participantsdifferent | 4-12 Experten | 3-10 | 3-8 |
Formatdifferent | Workshop + async | Workshop | Workshop + async |
Outputdifferent | Estimate Range, Assumption Log, Expert Consensus Notes | FMEA Table, Risk Priority, Mitigation Actions | Problem Statement, Cause Hypotheses, Confirmed Causes, Action Plan |
Tagsno overlap | EstimationExpertsForecasting | RiskQualityOperationsRoot cause | Root causeProblem solvingQualityIncident |
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