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| Criterion |  Decision Making Delphi Method |  Operations Fishbone Diagram |  Operations Change Analysis |
|---|---|---|---|
Purposedifferent | When knowledge is distributed and direct dominance should be avoided, groups quickly fall under the sway of their opinion leaders. The Delphi Method gathers assessments iteratively and gradually brings expert judgments closer together. | When a problem has several possible contributing factors, the method sorts causes by cause areas. It prevents an initial hunch from blocking the view of other plausible drivers. | For a deviation after a change, the method isolates the influence of the altered condition. It narrows down which differences are relevant and which are just accompanying noise. |
Complexitydifferent | High | Low | Medium |
Timedifferent | 1-4 Wochen | 30-60 min | 45-120 min |
Participantsdifferent | 6-30 Experten | 2-8 | 2-6 |
Formatdifferent | Async | Workshop | Workshop + async |
Outputdifferent | Expert Forecast, Consensus Range, Assumption Notes | Fishbone Diagram, Cause Categories, Investigation Backlog | Change Matrix, Cause Hypotheses, Validation Questions, Action List |
Tagsno overlap | ForecastingExpertsDecisionStrategy | Root causeQualityOperations | ChangeRoot causeTroubleshootingComparison |
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