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| Criterion |  Operations Runbook |  Architecture C4 Model |  Operations After-Action Review |  Architecture arc42 |
|---|---|---|---|---|
Purposedifferent | 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. | The C4 Model makes a system legible across several resolution levels, from context down to code. It suits situations where different audiences need to understand the same architecture from different altitudes. | After missions or project phases with unclear outcomes, the method makes visible what actually happened and what can be learned from it. It separates course, effect, and causes so experience turns into solid improvement. | 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. |
Complexitysame | Low | Low | Low | Low |
Timedifferent | 20-60 min | 1-4 h | 20-45 min | 1-2 Tage |
Participantsdifferent | 1-4 | 1-5 | 3-12 | 1-4 |
Formatdifferent | Async | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Runbook, Checklist, Escalation Path | Context Diagram, Container Diagram, Component Diagram | Lessons learned, Action items, Event summary | Architecture Document, Context View, Runtime View, Deployment View |
Tagsno overlap | OperationsReliabilityDocumentation | ArchitectureCommunicationVisualization | LearningOperationsImprovement | ArchitectureDocumentationCommunication |