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| Criterion |  Architecture C4 Model |  Operations Gemba Walk |  Operations Fishbone Diagram |
|---|---|---|---|
Purposedifferent | 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. | When a problem has several possible contributing factors, the method sorts causes by cause areas. It prevents an initial hunch from blocking the view of other plausible drivers. |
Complexitysame | Low | Low | Low |
Timedifferent | 1-4 h | 30-120 min | 30-60 min |
Participantsdifferent | 1-5 | 2-6 | 2-8 |
Formatdifferent | Workshop + async | Workshop | Workshop |
Outputdifferent | Context Diagram, Container Diagram, Component Diagram | Observation Notes, Improvement Ideas | Fishbone Diagram, Cause Categories, Investigation Backlog |
Tagsno overlap | ArchitectureCommunicationVisualization | LeanObservationProcessOperations | Root causeQualityOperations |
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