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| Criterion |  Decision Making Wideband Delphi |  Operations Kepner-Tregoe |  Operations 8D Problem Solving |
|---|---|---|---|
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 disturbance that's hard to pin down, the method cleanly separates problem, cause, and decision. It reduces mixing when symptoms allow several interpretations. | For an acute quality or delivery problem, the method structures immediate protection and root cause work together. It keeps the situation stable while the actual cause is investigated cleanly. |
Complexitysame | High | High | High |
Timedifferent | 1-4 h or multiple rounds | 2-8 h | 1-6 Wochen |
Participantsdifferent | 4-12 Experten | 2-8 | 4-10 |
Formatsame | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Estimate Range, Assumption Log, Expert Consensus Notes | Problem Analysis, Decision Analysis, Risk Plan | 8D Report, Containment Plan, Root Cause Evidence, Corrective Action Plan |
Tagsno overlap | EstimationExpertsForecasting | Problem solvingRoot causeDecisionOperations | QualityProblem solvingRoot cause |
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