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| Criterion |  Architecture C4 Model |  Decision Making Eisenhower Matrix |  Architecture Architecture Decision Record |
|---|---|---|---|
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. | It separates true priorities from noise so it becomes clear what should be done now, scheduled, delegated, or dropped. | An ADR permanently records an architecture decision with context, trade-offs, and consequence. It creates continuity for later changes because the decision path stays traceable. |
Complexitysame | Low | Low | Low |
Timedifferent | 1-4 h | 15-30 min | 15-45 min |
Participantsdifferent | 1-5 | 1-6 | 1-3 |
Formatdifferent | Workshop + async | Workshop + async | Async |
Outputdifferent | Context Diagram, Container Diagram, Component Diagram | Eisenhower Matrix, Action List, Delegation Notes | ADR File, Decision Log, Rationale |
Tagsno overlap | ArchitectureCommunicationVisualization | PrioritizationFocusTasks | ArchitectureRationaleDocumentationGovernance |
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