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| Criterion |  Architecture Architecture Decision Record |  Architecture C4 Model |  Domain Modeling Context Map |  Domain Modeling Domain Context Map |
|---|---|---|---|---|
Purposedifferent | 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. | 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 several contexts need to talk to each other, it makes their relationships and dependencies legible. It helps sort integration pressure and responsibilities across system boundaries. | When a domain model and its associated contexts need to be thought through together, it creates a shared overview. It connects the business view and organizational boundary into a readable whole. |
Complexitydifferent | Low | Low | Medium | Medium |
Timedifferent | 15-45 min | 1-4 h | 1-3 h | 1-3 h |
Participantsdifferent | 1-3 | 1-5 | 2-8 | 3-10 |
Formatdifferent | Async | Workshop + async | Workshop + async | Workshop |
Outputdifferent | ADR File, Decision Log, Rationale | Context Diagram, Container Diagram, Component Diagram | Context Map, Integration Patterns, Boundary Notes | Domain Context Map, Boundary Notes, Ownership Map |
Tagsno overlap | ArchitectureRationaleDocumentationGovernance | ArchitectureCommunicationVisualization | Domain-Driven DesignBoundariesStrategy | Domain-Driven DesignContextBoundaries |