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| Criterion |  Operations RACI Matrix |  Architecture Architecture Decision Record |  Operations Root Cause Analysis |  Operations Fishbone Diagram |
|---|---|---|---|---|
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. | When a problem keeps recurring and the cause stays unclear, the method exposes the underlying mechanism. It separates symptom, guess, and robust explanation from one another. | When a problem has several possible contributing factors, the method sorts causes by cause areas. It prevents an initial hunch from blocking the view of other plausible drivers. |
Complexitydifferent | Low | Low | Medium | Low |
Timedifferent | 45-90 min | 15-45 min | 1-4 h | 30-60 min |
Participantsdifferent | 2-8 | 1-3 | 3-8 | 2-8 |
Formatdifferent | Workshop + async | Async | Workshop + async | Workshop |
Outputdifferent | RACI Matrix, Responsibility Map, Decision Notes | ADR File, Decision Log, Rationale | Problem Statement, Cause Hypotheses, Confirmed Causes, Action Plan | Fishbone Diagram, Cause Categories, Investigation Backlog |
Tagsno overlap | RolesResponsibilityGovernanceOperations | ArchitectureRationaleDocumentationGovernance | Root causeProblem solvingQualityIncident | Root causeQualityOperations |