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| Criterion |  Architecture Architecture Decision Record |  Operations Runbook |  Architecture arc42 |  DevOps Incident Command |
|---|---|---|---|---|
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. | 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. | 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. | During an acute incident with several people involved, the method creates a clear leadership and communication structure. It reduces chaos when fast coordination and clean situational awareness are both needed at once. |
Complexitydifferent | Low | Low | Low | Medium |
Timedifferent | 15-45 min | 20-60 min | 1-2 Tage | As needed |
Participantsdifferent | 1-3 | 1-4 | 1-4 | 4-15 |
Formatdifferent | Async | Async | Workshop + async | Workshop + async |
Outputdifferent | ADR File, Decision Log, Rationale | Runbook, Checklist, Escalation Path | Architecture Document, Context View, Runtime View, Deployment View | Incident Log, Action Tracker, Stakeholder Updates |
Tagsno overlap | ArchitectureRationaleDocumentationGovernance | OperationsReliabilityDocumentation | ArchitectureDocumentationCommunication | IncidentOperationsReliability |