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| Criterion |  Operations RACI Matrix |  Architecture Architecture Decision Record |  Operations Runbook |
|---|---|---|---|
Purposedifferent | With unclear responsibilities across several roles or areas, the method creates unambiguous accountability logic. It reduces friction because decision, execution, contribution, and information become separately visible. | 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. |
Complexitysame | Low | Low | Low |
Timedifferent | 45-90 min | 15-45 min | 20-60 min |
Participantsdifferent | 2-8 | 1-3 | 1-4 |
Formatdifferent | Workshop + async | Async | Async |
Outputdifferent | RACI Matrix, Responsibility Map, Decision Notes | ADR File, Decision Log, Rationale | Runbook, Checklist, Escalation Path |
Tagsno overlap | RolesResponsibilityGovernanceOperations | ArchitectureRationaleDocumentationGovernance | OperationsReliabilityDocumentation |
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