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| Criterion |  Architecture C4 Model |  Architecture Architecture Communication Canvas |  Decision Making DACI |  Architecture Architecture Inception Canvas |
|---|---|---|---|---|
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. | The Architecture Communication Canvas plans architecture communication so the right people receive the right message. The method turns technical complexity into deliberate communication design. | In cross-functional decisions, responsibilities quickly blur between approval, influence, and execution. DACI arranges these roles so decision pressure, contribution, and information stay cleanly separated. | The Architecture Inception Canvas bundles the first architecture questions into a compact decision picture. It fits when an initiative is still in motion but still needs clear guardrails. |
Complexitydifferent | Low | Medium | Low | Low |
Timedifferent | 1-4 h | 60-120 min | 30-60 min | 1-2 h |
Participantsdifferent | 1-5 | 2-8 | 2-10 | 3-8 |
Formatdifferent | Workshop + async | Workshop + async | Workshop + async | Workshop |
Outputdifferent | Context Diagram, Container Diagram, Component Diagram | Communication Canvas, Stakeholder Messages, Architecture Communication Plan | DACI Matrix, Decision Owner, Decision Log | Inception Canvas, Risks, Goal List, Open Questions |
Tagsno overlap | ArchitectureCommunicationVisualization | ArchitectureCommunicationStakeholdersCanvas | DecisionRolesGovernanceAlignment | AlignmentArchitectureCanvas |