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| Criterion |  Architecture arc42 |  Operations Runbook |  Operations Failure Mode and Effects Analysis |
|---|---|---|---|
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 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. | For a process, product, or service with noticeable failure risks, the method assesses possible failure modes in advance. It directs attention to combinations of occurrence, effect, and detectability. |
Complexitydifferent | Low | Low | High |
Timedifferent | 1-2 Tage | 20-60 min | 2-6 h |
Participantsdifferent | 1-4 | 1-4 | 3-10 |
Formatdifferent | Workshop + async | Async | Workshop |
Outputdifferent | Architecture Document, Context View, Runtime View, Deployment View | Runbook, Checklist, Escalation Path | FMEA Table, Risk Priority, Mitigation Actions |
Tagsno overlap | ArchitectureDocumentationCommunication | OperationsReliabilityDocumentation | RiskQualityOperationsRoot cause |
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