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| Criterion |  Operations Barrier Analysis |  Architecture arc42 |  Operations MORT Analysis |  Architecture Architecture Decision Record |
|---|---|---|---|---|
Purposedifferent | 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. | arc42 structures architecture knowledge so teams can document system, decisions, and risks consistently. The template builds a living understanding of the architecture instead of scattered notes. | 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. | 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. |
Complexitydifferent | Medium | Low | High | Low |
Timedifferent | 2-4 h | 1-2 Tage | Mehrere Tage bis Wochen | 15-45 min |
Participantsdifferent | 2-6 | 1-4 | 2-6 | 1-3 |
Formatdifferent | Workshop + async | Workshop + async | Workshop + async | Async |
Outputdifferent | Barrier Inventory, Failure Analysis per Barrier, Action Backlog | Architecture Document, Context View, Runtime View, Deployment View | MORT Worksheets, Findings per Branch, Corrective Actions, Systemic Recommendations | ADR File, Decision Log, Rationale |
Tagsno overlap | Root causeSafetyIncident | ArchitectureDocumentationCommunication | Root causeSafetySystemicIncident | ArchitectureRationaleDocumentationGovernance |