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| Criterion |  Architecture arc42 |  Operations Runbook |  Operations RACI Matrix |  Decision Making DACI |
|---|---|---|---|---|
Purposedifferent | 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. | For recurring operational tasks or incidents, the method keeps solid action logic ready. It reduces uncertainty when time pressure, role changes, or rare situations demand fast access. | With unclear responsibilities across several roles or areas, the method creates unambiguous accountability logic. It reduces friction because decision, execution, contribution, and information become separately visible. | 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. |
Complexitysame | Low | Low | Low | Low |
Timedifferent | 1-2 Tage | 20-60 min | 45-90 min | 30-60 min |
Participantsdifferent | 1-4 | 1-4 | 2-8 | 2-10 |
Formatdifferent | Workshop + async | Async | Workshop + async | Workshop + async |
Outputdifferent | Architecture Document, Context View, Runtime View, Deployment View | Runbook, Checklist, Escalation Path | RACI Matrix, Responsibility Map, Decision Notes | DACI Matrix, Decision Owner, Decision Log |
Tagsno overlap | ArchitectureDocumentationCommunication | OperationsReliabilityDocumentation | RolesResponsibilityGovernanceOperations | DecisionRolesGovernanceAlignment |