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| Criterion |  Operations Kaizen Event |  Facilitation Dot Voting |  Operations Gemba Walk |  Facilitation Nominal Group Technique |
|---|---|---|---|---|
Purposedifferent | For a tightly scoped process segment with noticeable waste, the method bundles shared energy for change. It suits situations that call for fast learning loops and visible adjustments. | When a workshop has produced too many options and the group needs to condense quickly, dot voting makes preferences visible in a short time. It bundles individual votes into a solid signal for the next selection. | 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. | 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 | Medium | Low | Low | Medium |
Timedifferent | 0.5-5 Tage | 5-15 min | 30-120 min | 60-120 min |
Participantsdifferent | 4-10 | 3-20 | 2-6 | 5-12 |
Formatsame | Workshop | Workshop | Workshop | Workshop |
Outputdifferent | Kaizen Charter, Waste List, Improvement Experiments, Standard Work Update | Ranked list, Consensus signal, Shortlist | Observation Notes, Improvement Ideas | Ranked Ideas, Clarified Options, Group Priority |
Tagsno overlap | LeanContinuous improvementOperations | FacilitationVotingConsensusPrioritization | LeanObservationProcessOperations | FacilitationPrioritizationVotingInclusion |