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| Criterion |  Architecture C4 Model |  Operations Barrier Analysis |  Architecture arc42 |  Operations MORT Analysis |
|---|---|---|---|---|
Purposedifferent | The C4 Model makes a system legible across several resolution levels, from context down to code. It suits situations where different audiences need to understand the same architecture from different altitudes. | 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. |
Complexitydifferent | Low | Medium | Low | High |
Timedifferent | 1-4 h | 2-4 h | 1-2 Tage | Mehrere Tage bis Wochen |
Participantsdifferent | 1-5 | 2-6 | 1-4 | 2-6 |
Formatsame | Workshop + async | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Context Diagram, Container Diagram, Component Diagram | 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 |
Tagsno overlap | ArchitectureCommunicationVisualization | Root causeSafetyIncident | ArchitectureDocumentationCommunication | Root causeSafetySystemicIncident |