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| Criterion |  Architecture arc42 |  Architecture Views and Beyond |  Operations MORT Analysis |  Operations 5 Whys |
|---|---|---|---|---|
Purposedifferent | 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. | Views and Beyond organizes architecture into several views so no single diagram has to do everything at once. This makes it possible to choose the representation that fits the stakeholder's question. | 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. | For a single, hard-to-explain deviation, the method exposes the causal chain behind the visible symptom. It keeps the cause open until a controllable condition emerges instead of a mere description. |
Complexitydifferent | Low | Medium | High | Low |
Timedifferent | 1-2 Tage | 1-3 Tage | Mehrere Tage bis Wochen | 15-30 min |
Participantsdifferent | 1-4 | 1-4 | 2-6 | 2-6 |
Formatdifferent | Workshop + async | Workshop + async | Workshop + async | Workshop |
Outputdifferent | Architecture Document, Context View, Runtime View, Deployment View | Architecture Views, Cross-view Notes, Rationale | MORT Worksheets, Findings per Branch, Corrective Actions, Systemic Recommendations | Root cause notes, Countermeasures |
Tagsno overlap | ArchitectureDocumentationCommunication | DocumentationStakeholdersArchitecture | Root causeSafetySystemicIncident | Root causeIncidentLeanProblem solving |