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| Criterion |  Operations 8D Problem Solving |  Facilitation Nominal Group Technique |  Facilitation 1-2-4-All |
|---|---|---|---|
Purposedifferent | 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. | 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. | When many people in a group too rarely get to speak, 1-2-4-All distributes thinking time more fairly. The format builds participation step by step and makes quiet or still-unformed thoughts usable faster. |
Complexitydifferent | High | Medium | Low |
Timedifferent | 1-6 Wochen | 60-120 min | 10-20 min |
Participantsdifferent | 4-10 | 5-12 | 4-100+ |
Formatdifferent | Workshop + async | Workshop | Workshop |
Outputdifferent | 8D Report, Containment Plan, Root Cause Evidence, Corrective Action Plan | Ranked Ideas, Clarified Options, Group Priority | Idea List, Shared Insights, Emergent Themes |
Tagsno overlap | QualityProblem solvingRoot cause | FacilitationPrioritizationVotingInclusion | FacilitationInclusionIdeation |
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