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| Criterion |  Decision Making DACI |  Architecture Architecture Decision Record |  Architecture arc42 |  Architecture Architecture Communication Canvas |
|---|---|---|---|---|
Purposedifferent | 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. | 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. | 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. | The Architecture Communication Canvas plans architecture communication so the right people receive the right message. The method turns technical complexity into deliberate communication design. |
Complexitydifferent | Low | Low | Low | Medium |
Timedifferent | 30-60 min | 15-45 min | 1-2 Tage | 60-120 min |
Participantsdifferent | 2-10 | 1-3 | 1-4 | 2-8 |
Formatdifferent | Workshop + async | Async | Workshop + async | Workshop + async |
Outputdifferent | DACI Matrix, Decision Owner, Decision Log | ADR File, Decision Log, Rationale | Architecture Document, Context View, Runtime View, Deployment View | Communication Canvas, Stakeholder Messages, Architecture Communication Plan |
Tagsno overlap | DecisionRolesGovernanceAlignment | ArchitectureRationaleDocumentationGovernance | ArchitectureDocumentationCommunication | ArchitectureCommunicationStakeholdersCanvas |