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| Criterion |  Operations A3 Problem Solving |  Operations Kaizen Event |  Architecture arc42 |
|---|---|---|---|
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. | arc42 structures architecture knowledge so teams can document system, decisions, and risks consistently. The template builds a living understanding of the architecture instead of scattered notes. |
Complexitydifferent | Medium | Medium | Low |
Timedifferent | 45-90 min | 0.5-5 Tage | 1-2 Tage |
Participantsdifferent | 2-5 | 4-10 | 1-4 |
Formatdifferent | Workshop + async | Workshop | Workshop + async |
Outputdifferent | A3 Report, Action Plan, Root Cause Analysis | Kaizen Charter, Waste List, Improvement Experiments, Standard Work Update | Architecture Document, Context View, Runtime View, Deployment View |
Tagsno overlap | LeanProblem solvingCoachingOperations | LeanContinuous improvementOperations | ArchitectureDocumentationCommunication |
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