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| Criterion | ![]() Architecture C4 Model | ![]() Knowledge Modeling Shape-First Modeling | ![]() Architecture arc42 | ![]() Architecture Architecture Decision Record |
|---|---|---|---|---|
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. | Shape-First Modeling defines data quality through shapes before implementation or integration frays at the edges. The approach fits when validation and data contracts should be part of the design from the start. | 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. | 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 | Medium | Low | Low |
Timedifferent | 1-4 h | Halber Tag pro Domain Slice | 1-2 Tage | 15-45 min |
Participantsdifferent | 1-5 | 1-4 | 1-4 | 1-3 |
Formatdifferent | Workshop + async | Workshop + async | Workshop + async | Async |
Outputdifferent | Context Diagram, Container Diagram, Component Diagram | SHACL or ShEx Shapes, Validation Reports, Data Contracts, Shape Documentation | Architecture Document, Context View, Runtime View, Deployment View | ADR File, Decision Log, Rationale |
Tagsno overlap | ArchitectureCommunicationVisualization | Knowledge graphValidationSemantic | ArchitectureDocumentationCommunication | ArchitectureRationaleDocumentationGovernance |



