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| Criterion |  Architecture C4 Model |  Architecture Software Architecture Canvas |  UX Research Affinity Diagramming |
|---|---|---|---|
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. | The Software Architecture Canvas reduces a system to the most important architecture decisions, constraints, and interfaces. It is useful when teams need a resilient overall picture quickly. | When research notes, feedback, or observations sit unconnected side by side, affinity diagramming sorts the raw material into solid themes. Many individual points turn into patterns that make decisions and opportunities clearer. |
Complexitysame | Low | Low | Low |
Timedifferent | 1-4 h | 1-2 h | 45–90 min |
Participantsdifferent | 1-5 | 3-10 | 3-10 |
Formatdifferent | Workshop + async | Workshop | Workshop |
Outputdifferent | Context Diagram, Container Diagram, Component Diagram | Architecture Canvas, Goals, Constraints, Quality Attributes | Theme clusters, Insight statements, Opportunity areas |
Tagsno overlap | ArchitectureCommunicationVisualization | CanvasArchitectureAlignmentWorkshop | SynthesisQualitativeRoot cause |
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