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| Criterion |  Architecture C4 Model |  Agile Specification by Example |  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. | When business rules need to become precise, it ties language, example, and test together. It sorts work by value, risk, and delivery ability. The result is captured as an Example Table and Acceptance Tests. | 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. |
Complexitydifferent | Low | Medium | Low |
Timedifferent | 1-4 h | 60-90 min pro Feature | 15-45 min |
Participantsdifferent | 1-5 | 3-6 | 1-3 |
Formatdifferent | Workshop + async | Workshop | Async |
Outputdifferent | Context Diagram, Container Diagram, Component Diagram | Example Table, Acceptance Tests | ADR File, Decision Log, Rationale |
Tagsno overlap | ArchitectureCommunicationVisualization | AgileRequirementsExamplesBehavior-Driven Development | ArchitectureRationaleDocumentationGovernance |
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