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| Criterion |  DevOps Incident Command |  Architecture Architecture Decision Record |  Operations After-Action Review |  Operations Learning Review |
|---|---|---|---|---|
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. | 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. | 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. | After a project phase with mixed results, the method makes learning from the individual case reusable. It connects events, decisions, and systemic conditions into robust insights. |
Complexitydifferent | Medium | Low | Low | Medium |
Timedifferent | As needed | 15-45 min | 20-45 min | 1-3 h |
Participantsdifferent | 4-15 | 1-3 | 3-12 | 3-10 |
Formatdifferent | Workshop + async | Async | Workshop + async | Workshop |
Outputdifferent | Incident Log, Action Tracker, Stakeholder Updates | ADR File, Decision Log, Rationale | Lessons learned, Action items, Event summary | Learning Review Notes, System Factors, Improvement Actions |
Tagsno overlap | IncidentOperationsReliability | ArchitectureRationaleDocumentationGovernance | LearningOperationsImprovement | LearningRetrospectiveIncidentOperations |