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| Criterion |  Architecture Architecture Decision Record |  Operations Runbook |  Operations ALPEN Method |  DevOps Incident Command |
|---|---|---|---|---|
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. | With an overloaded day full of too many tasks, a realistic picture of the day emerges. The method connects estimating, deciding, and buffer thinking so planning fits available energy and time. | 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. |
Complexitydifferent | Low | Low | Low | Medium |
Timedifferent | 15-45 min | 20-60 min | 10-20 min daily | As needed |
Participantsdifferent | 1-3 | 1-4 | 1 | 4-15 |
Formatdifferent | Async | Async | Async | Workshop + async |
Outputdifferent | ADR File, Decision Log, Rationale | Runbook, Checklist, Escalation Path | Daily Plan, Time Estimates, Review Notes | Incident Log, Action Tracker, Stakeholder Updates |
Tagsno overlap | ArchitectureRationaleDocumentationGovernance | OperationsReliabilityDocumentation | PlanningTime managementProductivityOperations | IncidentOperationsReliability |