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| Criterion |  Facilitation Timeline |  Facilitation Nominal Group Technique |  Operations Gemba Walk |
|---|---|---|---|
Purposedifferent | When a project, incident, or change process is only remembered in fragments, Timeline brings the sequence back into a readable form. It makes turning points, precursors, and after-effects recognizable over the course of time. | 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 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. |
Complexitydifferent | Low | Medium | Low |
Timedifferent | 30-90 min | 60-120 min | 30-120 min |
Participantsdifferent | 2-12 | 5-12 | 2-6 |
Formatdifferent | Workshop + async | Workshop | Workshop |
Outputdifferent | Timeline, Milestones, Insight Notes | Ranked Ideas, Clarified Options, Group Priority | Observation Notes, Improvement Ideas |
Tagsno overlap | TimelineFacilitationSequence | FacilitationPrioritizationVotingInclusion | LeanObservationProcessOperations |
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