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| Criterion |  Architecture Architecture Communication Canvas |  Architecture arc42 |  Operations MORT Analysis |  Operations 5 Whys |
|---|---|---|---|---|
Purposedifferent | The Architecture Communication Canvas plans architecture communication so the right people receive the right message. The method turns technical complexity into deliberate communication design. | 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. | 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 | Medium | Low | High | Low |
Timedifferent | 60-120 min | 1-2 Tage | Mehrere Tage bis Wochen | 15-30 min |
Participantsdifferent | 2-8 | 1-4 | 2-6 | 2-6 |
Formatdifferent | Workshop + async | Workshop + async | Workshop + async | Workshop |
Outputdifferent | Communication Canvas, Stakeholder Messages, Architecture Communication Plan | Architecture Document, Context View, Runtime View, Deployment View | MORT Worksheets, Findings per Branch, Corrective Actions, Systemic Recommendations | Root cause notes, Countermeasures |
Tagsno overlap | ArchitectureCommunicationStakeholdersCanvas | ArchitectureDocumentationCommunication | Root causeSafetySystemicIncident | Root causeIncidentLeanProblem solving |