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| Criterion |  Operations ABC Analysis |  Operations 5 Whys |  Facilitation Nominal Group Technique |
|---|---|---|---|
Purposedifferent | With many similar objects of differing economic significance, the method prioritizes effort by effect. It separates what needs regular steering from what rarely needs attention. | 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. | 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. |
Complexitydifferent | Low | Low | Medium |
Timedifferent | 30-60 min | 15-30 min | 60-120 min |
Participantsdifferent | 1-5 | 2-6 | 5-12 |
Formatdifferent | Async | Workshop | Workshop |
Outputdifferent | ABC Classification, Focus Rules, Control List | Root cause notes, Countermeasures | Ranked Ideas, Clarified Options, Group Priority |
Tagsno overlap | PrioritizationOperationsPortfolio | Root causeIncidentLeanProblem solving | FacilitationPrioritizationVotingInclusion |
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