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| Criterion |  Architecture arc42 |  DevOps Incident Command |  DevOps Blameless Postmortem |  Operations Runbook |
|---|---|---|---|---|
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. | 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. | After an incident with damage or a near miss, the method creates a sober field for learning without assigning blame. It directs attention to the course of events, conditions, and effective countermeasures. | 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. |
Complexitydifferent | Low | Medium | Medium | Low |
Timedifferent | 1-2 Tage | As needed | 30-90 min | 20-60 min |
Participantsdifferent | 1-4 | 4-15 | 3-12 | 1-4 |
Formatdifferent | Workshop + async | Workshop + async | Workshop + async | Async |
Outputdifferent | Architecture Document, Context View, Runtime View, Deployment View | Incident Log, Action Tracker, Stakeholder Updates | Postmortem Doc, Action Items, Timeline | Runbook, Checklist, Escalation Path |
Tagsno overlap | ArchitectureDocumentationCommunication | IncidentOperationsReliability | Site Reliability EngineeringIncidentLearningReliability | OperationsReliabilityDocumentation |