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| Criterion |  Operations After-Action Review |  Architecture Architecture Decision Record |  DevOps Incident Command |  Architecture arc42 |
|---|---|---|---|---|
Purposedifferent | 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. | An ADR permanently records an architecture decision with context, trade-offs, and consequence. It creates continuity for later changes because the decision path stays traceable. | 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. |
Complexitydifferent | Low | Low | Medium | Low |
Timedifferent | 20-45 min | 15-45 min | As needed | 1-2 Tage |
Participantsdifferent | 3-12 | 1-3 | 4-15 | 1-4 |
Formatdifferent | Workshop + async | Async | Workshop + async | Workshop + async |
Outputdifferent | Lessons learned, Action items, Event summary | ADR File, Decision Log, Rationale | Incident Log, Action Tracker, Stakeholder Updates | Architecture Document, Context View, Runtime View, Deployment View |
Tagsno overlap | LearningOperationsImprovement | ArchitectureRationaleDocumentationGovernance | IncidentOperationsReliability | ArchitectureDocumentationCommunication |