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| Criterion |  Operations A3 Problem Solving |  Operations Kaizen Event |  Innovation Crazy 8s |  Operations Gemba Walk |
|---|---|---|---|---|
Purposedifferent | 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. | 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. | With only a few minutes available and a still-fuzzy solution search, the method forces a wide range of variants. It produces fast sketches before the first idea can settle in, making different directions directly comparable and open to further development. | 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 | Medium | Medium | Low | Low |
Timedifferent | 45-90 min | 0.5-5 Tage | 8-15 min | 30-120 min |
Participantsdifferent | 2-5 | 4-10 | 1-10 | 2-6 |
Formatdifferent | Workshop + async | Workshop | Workshop | Workshop |
Outputdifferent | A3 Report, Action Plan, Root Cause Analysis | Kaizen Charter, Waste List, Improvement Experiments, Standard Work Update | Sketch Set, Idea Shortlist, Direction Options | Observation Notes, Improvement Ideas |
Tagsno overlap | LeanProblem solvingCoachingOperations | LeanContinuous improvementOperations | BrainstormingSketchingSpeedDivergenceDesign sprint | LeanObservationProcessOperations |