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| Criterion |  Operations Kepner-Tregoe |  Facilitation Nominal Group Technique |  Operations 8D Problem Solving |
|---|---|---|---|
Purposedifferent | 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. | When loud voices could dominate a round, Nominal Group Technique protects individual thinking time from group effects. It collects ideas separately first and only then enables shared weighting. | 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. |
Complexitydifferent | High | Medium | High |
Timedifferent | 2-8 h | 60-120 min | 1-6 Wochen |
Participantsdifferent | 2-8 | 5-12 | 4-10 |
Formatdifferent | Workshop + async | Workshop | Workshop + async |
Outputdifferent | Problem Analysis, Decision Analysis, Risk Plan | Ranked Ideas, Clarified Options, Group Priority | 8D Report, Containment Plan, Root Cause Evidence, Corrective Action Plan |
Tagsno overlap | Problem solvingRoot causeDecisionOperations | FacilitationPrioritizationVotingInclusion | QualityProblem solvingRoot cause |
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