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Selected:RACI MatrixArchitecture Decision RecordRoot Cause AnalysisFailure Mode and Effects Analysis
| Criterion |  Operations RACI Matrix |  Architecture Architecture Decision Record |  Operations Root Cause Analysis |  Operations Failure Mode and Effects Analysis |
|---|---|---|---|---|
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. | For a process, product, or service with noticeable failure risks, the method assesses possible failure modes in advance. It directs attention to combinations of occurrence, effect, and detectability. |
Complexitydifferent | Low | Low | Medium | High |
Timedifferent | 45-90 min | 15-45 min | 1-4 h | 2-6 h |
Participantsdifferent | 2-8 | 1-3 | 3-8 | 3-10 |
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 | FMEA Table, Risk Priority, Mitigation Actions |
Tagsno overlap | RolesResponsibilityGovernanceOperations | ArchitectureRationaleDocumentationGovernance | Root causeProblem solvingQualityIncident | RiskQualityOperationsRoot cause |