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| Criterion |  Operations Kaizen Event |  Architecture C4 Model |  Operations Gemba Walk |
|---|---|---|---|
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. | The C4 Model makes a system legible across several resolution levels, from context down to code. It suits situations where different audiences need to understand the same architecture from different altitudes. | 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 | Low | Low |
Timedifferent | 0.5-5 Tage | 1-4 h | 30-120 min |
Participantsdifferent | 4-10 | 1-5 | 2-6 |
Formatdifferent | Workshop | Workshop + async | Workshop |
Outputdifferent | Kaizen Charter, Waste List, Improvement Experiments, Standard Work Update | Context Diagram, Container Diagram, Component Diagram | Observation Notes, Improvement Ideas |
Tagsno overlap | LeanContinuous improvementOperations | ArchitectureCommunicationVisualization | LeanObservationProcessOperations |
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