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| Criterion |  Operations Kaizen Event |  Operations A3 Problem Solving |  Decision Making Assumption Surfacing |
|---|---|---|---|
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. | 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. | Plans often contain assumptions that were never openly stated and remain dangerous precisely because of that. Assumption Surfacing makes these silent premises visible and prioritizes which of them carry the initiative or could sink it. |
Complexitydifferent | Medium | Medium | Low |
Timedifferent | 0.5-5 Tage | 45-90 min | 45-90 min |
Participantsdifferent | 4-10 | 2-5 | 2-8 |
Formatdifferent | Workshop | Workshop + async | Workshop + async |
Outputdifferent | Kaizen Charter, Waste List, Improvement Experiments, Standard Work Update | A3 Report, Action Plan, Root Cause Analysis | Assumption List, Critical Assumptions, Learning Plan |
Tagsno overlap | LeanContinuous improvementOperations | LeanProblem solvingCoachingOperations | AssumptionsRiskDecisionDiscovery |
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