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| Criterion |  Operations Gemba Walk |  Decision Making Argument Mapping |  Operations Kaizen Event |  Operations Kepner-Tregoe |
|---|---|---|---|---|
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 statements, evidence, and counterarguments get mixed up, a debate quickly loses its structure. Argument Mapping breaks a thesis down into its reasoning and makes visible what it really rests on. | 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. | For a disturbance that's hard to pin down, the method cleanly separates problem, cause, and decision. It reduces mixing when symptoms allow several interpretations. |
Complexitydifferent | Low | Medium | Medium | High |
Timedifferent | 30-120 min | 1-3 h | 0.5-5 Tage | 2-8 h |
Participantsdifferent | 2-6 | 1-8 | 4-10 | 2-8 |
Formatdifferent | Workshop | Workshop + async | Workshop | Workshop + async |
Outputdifferent | Observation Notes, Improvement Ideas | Argument Map, Evidence Gaps, Decision Rationale | Kaizen Charter, Waste List, Improvement Experiments, Standard Work Update | Problem Analysis, Decision Analysis, Risk Plan |
Tagsno overlap | LeanObservationProcessOperations | SensemakingDecisionRationale | LeanContinuous improvementOperations | Problem solvingRoot causeDecisionOperations |