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| Criterion |  Decision Making Delphi Method |  Operations Failure Mode and Effects Analysis |  Operations Gemba Walk |
|---|---|---|---|
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 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 there is uncertainty about the real course of a process, the method brings observation to the place where work happens. It combines perception, follow-up questions, and process knowledge so decisions rest on actual workflows instead of assumptions. |
Complexitydifferent | High | High | Low |
Timedifferent | 1-4 Wochen | 2-6 h | 30-120 min |
Participantsdifferent | 6-30 Experten | 3-10 | 2-6 |
Formatdifferent | Async | Workshop | Workshop |
Outputdifferent | Expert Forecast, Consensus Range, Assumption Notes | FMEA Table, Risk Priority, Mitigation Actions | Observation Notes, Improvement Ideas |
Tagsno overlap | ForecastingExpertsDecisionStrategy | RiskQualityOperationsRoot cause | LeanObservationProcessOperations |
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