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| Criterion |  Decision Making Delphi Method |  Operations Root Cause Tree Analysis |  Operations Fishbone Diagram |
|---|---|---|---|
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. | For a problem with several suspected causes, the method builds a causal structure instead of a mere list. It makes visible how causes connect and where the strongest points of leverage lie. | 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. |
Complexitydifferent | High | Medium | Low |
Timedifferent | 1-4 Wochen | 1-3 h | 30-60 min |
Participantsdifferent | 6-30 Experten | 2-8 | 2-8 |
Formatdifferent | Async | Workshop | Workshop |
Outputdifferent | Expert Forecast, Consensus Range, Assumption Notes | Cause Tree, Evidence Notes, Countermeasures | Fishbone Diagram, Cause Categories, Investigation Backlog |
Tagsno overlap | ForecastingExpertsDecisionStrategy | Root causeTreeIncidentQuality | Root causeQualityOperations |
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