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| Criterion |  Architecture Architecture Decision Record |  Operations Runbook |  DevOps Incident Command |  DevOps Game Day |
|---|---|---|---|---|
Purposedifferent | 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. | 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. | 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. | In preparing for rare incidents, the method tests response capability under controlled conditions. It shows where assumptions about stability, roles, and recovery are too optimistic. |
Complexitydifferent | Low | Low | Medium | High |
Timedifferent | 15-45 min | 20-60 min | As needed | Halber Tag |
Participantsdifferent | 1-3 | 1-4 | 4-15 | 5-20 |
Formatdifferent | Async | Async | Workshop + async | Workshop |
Outputdifferent | ADR File, Decision Log, Rationale | Runbook, Checklist, Escalation Path | Incident Log, Action Tracker, Stakeholder Updates | Simulation Notes, Gaps List, Updated Runbooks |
Tagsno overlap | ArchitectureRationaleDocumentationGovernance | OperationsReliabilityDocumentation | IncidentOperationsReliability | ResilienceOperationsIncident |