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| Criterion |  Architecture C4 Model |  Decision Making RAPID |  Decision Making DACI |  Architecture arc42 |
|---|---|---|---|---|
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. | In complex management decisions, clarity is often missing about who recommends, who agrees, and who makes the decision. RAPID creates this assignment and stabilizes decisions across several levels. | 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. | arc42 structures architecture knowledge so teams can document system, decisions, and risks consistently. The template builds a living understanding of the architecture instead of scattered notes. |
Complexitydifferent | Low | Medium | Low | Low |
Timedifferent | 1-4 h | 45-90 min | 30-60 min | 1-2 Tage |
Participantsdifferent | 1-5 | 3-12 | 2-10 | 1-4 |
Formatsame | Workshop + async | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Context Diagram, Container Diagram, Component Diagram | RAPID Role Map, Recommendation, Decision Log | DACI Matrix, Decision Owner, Decision Log | Architecture Document, Context View, Runtime View, Deployment View |
Tagsno overlap | ArchitectureCommunicationVisualization | DecisionRolesGovernance | DecisionRolesGovernanceAlignment | ArchitectureDocumentationCommunication |