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| Criterion |  Operations Gemba Walk |  Agile WSJF |  Facilitation Nominal Group Technique |  Operations A3 Problem Solving |
|---|---|---|---|---|
Purposedifferent | 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 many tasks compete for the same capacity, it orders work by economic impact. It makes time lost, benefit, and effort comparable together. | 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 complex deviation with several people involved, the method bundles problem, analysis, and decision onto one page. It creates a shared working space where causes, countermeasures, and follow-up fit together. |
Complexitydifferent | Low | High | Medium | Medium |
Timedifferent | 30-120 min | 45-90 min | 60-120 min | 45-90 min |
Participantsdifferent | 2-6 | 3-10 | 5-12 | 2-5 |
Formatdifferent | Workshop | Workshop | Workshop | Workshop + async |
Outputdifferent | Observation Notes, Improvement Ideas | Ranked Backlog, Cost-of-Delay Assumptions | Ranked Ideas, Clarified Options, Group Priority | A3 Report, Action Plan, Root Cause Analysis |
Tagsno overlap | LeanObservationProcessOperations | LeanEconomicsSequencePrioritization | FacilitationPrioritizationVotingInclusion | LeanProblem solvingCoachingOperations |