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| Criterion |  Decision Making Wideband Delphi |  Operations A3 Problem Solving |  Operations Root Cause Analysis |  Operations Failure Mode and Effects 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 complex deviation with several people involved, the method bundles problem, analysis, and decision onto one page. It creates a shared working space where causes, countermeasures, and follow-up fit together. | 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. | 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 | High | Medium | Medium | High |
Timedifferent | 1-4 h or multiple rounds | 45-90 min | 1-4 h | 2-6 h |
Participantsdifferent | 4-12 Experten | 2-5 | 3-8 | 3-10 |
Formatdifferent | Workshop + async | Workshop + async | Workshop + async | Workshop |
Outputdifferent | Estimate Range, Assumption Log, Expert Consensus Notes | A3 Report, Action Plan, Root Cause Analysis | Problem Statement, Cause Hypotheses, Confirmed Causes, Action Plan | FMEA Table, Risk Priority, Mitigation Actions |
Tagsno overlap | EstimationExpertsForecasting | LeanProblem solvingCoachingOperations | Root causeProblem solvingQualityIncident | RiskQualityOperationsRoot cause |