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| Criterion |  DevOps Incident Command |  Architecture arc42 |  Architecture ATAM (Architecture Tradeoff Analysis Method) |  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. | 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. | ATAM helps teams weigh architecture decisions when quality goals compete. The team considers business goals, stakeholder expectations, and technical decisions together. The evaluation shows which risks need further investigation. | 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 | Low | High | Low |
Timedifferent | As needed | 1-2 Tage | Several meetings plus preparation and analysis; total effort depends on scope | 20-60 min |
Participantsdifferent | 4-15 | 1-4 | Evaluation team, architects, and relevant stakeholders | 1-4 |
Formatdifferent | Workshop + async | Workshop + async | Workshop + async | Async |
Outputdifferent | Incident Log, Action Tracker, Stakeholder Updates | Architecture Document, Context View, Runtime View, Deployment View | Prioritized quality scenarios in a utility tree, Architecture risks with reasoning and assumptions, Sensitivity and trade-off points, Findings report with open investigations | Runbook, Checklist, Escalation Path |
Tagsno overlap | IncidentOperationsReliability | ArchitectureDocumentationCommunication | ArchitectureQualityRiskTradeoffsStakeholders | OperationsReliabilityDocumentation |