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| Criterion |  Facilitation Nominal Group Technique |  Operations 5 Whys |
|---|---|---|
Purposedifferent | 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 a single, hard-to-explain deviation, the method exposes the causal chain behind the visible symptom. It keeps the cause open until a controllable condition emerges instead of a mere description. |
Complexitydifferent | Medium | Low |
Timedifferent | 60-120 min | 15-30 min |
Participantsdifferent | 5-12 | 2-6 |
Formatsame | Workshop | Workshop |
Outputdifferent | Ranked Ideas, Clarified Options, Group Priority | Root cause notes, Countermeasures |
Tagsno overlap | FacilitationPrioritizationVotingInclusion | Root causeIncidentLeanProblem solving |
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