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| Criterion |  Architecture arc42 |  Operations Root Cause Tree Analysis |  Operations Runbook |  DevOps Incident Command |
|---|---|---|---|---|
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 a problem with several suspected causes, the method builds a causal structure instead of a mere list. It makes visible how causes connect and where the strongest points of leverage lie. | 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. | 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 | Medium | Low | Medium |
Timedifferent | 1-2 Tage | 1-3 h | 20-60 min | As needed |
Participantsdifferent | 1-4 | 2-8 | 1-4 | 4-15 |
Formatdifferent | Workshop + async | Workshop | Async | Workshop + async |
Outputdifferent | Architecture Document, Context View, Runtime View, Deployment View | Cause Tree, Evidence Notes, Countermeasures | Runbook, Checklist, Escalation Path | Incident Log, Action Tracker, Stakeholder Updates |
Tagsno overlap | ArchitectureDocumentationCommunication | Root causeTreeIncidentQuality | OperationsReliabilityDocumentation | IncidentOperationsReliability |