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| Criterion |  Architecture Architecture Decision Record |  Operations Failure Mode and Effects Analysis |  Operations Barrier Analysis |  Operations MORT Analysis |
|---|---|---|---|---|
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 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. | For a risk that can only be managed through multiple layers of protection, the method examines the effectiveness of each barrier. It shows where safeguards are missing, too weak, or fail under real conditions. | For a safety-relevant event or a system with high protection requirements, the method examines where controls failed. It exposes both technical and organizational gaps. |
Complexitydifferent | Low | High | Medium | High |
Timedifferent | 15-45 min | 2-6 h | 2-4 h | Mehrere Tage bis Wochen |
Participantsdifferent | 1-3 | 3-10 | 2-6 | 2-6 |
Formatdifferent | Async | Workshop | Workshop + async | Workshop + async |
Outputdifferent | ADR File, Decision Log, Rationale | FMEA Table, Risk Priority, Mitigation Actions | Barrier Inventory, Failure Analysis per Barrier, Action Backlog | MORT Worksheets, Findings per Branch, Corrective Actions, Systemic Recommendations |
Tagsno overlap | ArchitectureRationaleDocumentationGovernance | RiskQualityOperationsRoot cause | Root causeSafetyIncident | Root causeSafetySystemicIncident |