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| Criterion |  Architecture arc42 |  Systems Thinking Soft Systems Methodology |  Systems Thinking CATWOE Analysis |  Architecture Architecture Decision Record |
|---|---|---|---|---|
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. | Soft Systems Methodology helps explore unclear or politically charged problems systematically. Instead of forcing a quick answer, the method builds a shared understanding of perspectives and room for action. | CATWOE structures a problem from six viewpoints and prevents too narrow a view of the situation. Different experiences of the system become comparably discussable this way. | 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 | Low | High | Medium | Low |
Timedifferent | 1-2 Tage | 0.5-3 Tage | 45-90 min | 15-45 min |
Participantsdifferent | 1-4 | 5-15 | 3-8 | 1-3 |
Formatdifferent | Workshop + async | Workshop | Workshop + async | Async |
Outputdifferent | Architecture Document, Context View, Runtime View, Deployment View | Rich Picture, Root Definitions, Conceptual Models, Change Agenda | CATWOE Canvas, Root Definition, Stakeholder Perspectives, Constraints | ADR File, Decision Log, Rationale |
Tagsno overlap | ArchitectureDocumentationCommunication | Soft systemsComplexitySensemakingSystems thinking | Systems thinkingFramingStakeholders | ArchitectureRationaleDocumentationGovernance |