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| Criterion |  Operations A3 Problem Solving |  Architecture C4 Model |
|---|---|---|
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. | 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. |
Complexitydifferent | Medium | Low |
Timedifferent | 45-90 min | 1-4 h |
Participantsdifferent | 2-5 | 1-5 |
Formatsame | Workshop + async | Workshop + async |
Outputdifferent | A3 Report, Action Plan, Root Cause Analysis | Context Diagram, Container Diagram, Component Diagram |
Tagsno overlap | LeanProblem solvingCoachingOperations | ArchitectureCommunicationVisualization |
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