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| Criterion |  DevOps Incident Command |  Operations Causal Factor Analysis |  Architecture arc42 |  Operations Runbook |
|---|---|---|---|---|
Purposedifferent | 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. | For an event with a complicated course, the method breaks down the contributing factors along the timeline. It shows how conditions, decisions, and reactions together produce a course of events. | 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. |
Complexitydifferent | Medium | High | Low | Low |
Timedifferent | As needed | 2-6 h | 1-2 Tage | 20-60 min |
Participantsdifferent | 4-15 | 3-10 | 1-4 | 1-4 |
Formatdifferent | Workshop + async | Workshop + async | Workshop + async | Async |
Outputdifferent | Incident Log, Action Tracker, Stakeholder Updates | Event Timeline, Causal Factor Chart, Cause List, Corrective Actions | Architecture Document, Context View, Runtime View, Deployment View | Runbook, Checklist, Escalation Path |
Tagsno overlap | IncidentOperationsReliability | CausalityIncidentRoot causeTimeline | ArchitectureDocumentationCommunication | OperationsReliabilityDocumentation |