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| Criterion |  Architecture C4 Model |  UX Research First-click Testing |  UX Research Usability Testing |
|---|---|---|---|
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. | When users immediately turn the wrong way on a screen or wireframe, first click testing checks initial orientation at high speed. The first click shows early whether expectation, labeling, and wayfinding fit together. | When a product is built but people get stuck on tasks, usability testing shows the friction at concrete points. Observed use instead of self-report makes visible where orientation, understanding, or interaction breaks down. |
Complexitydifferent | Low | Low | Medium |
Timedifferent | 1-4 h | 1-2 Tage | 1-2 h je Session |
Participantsdifferent | 1-5 | 10-30 | Based on research question |
Formatdifferent | Workshop + async | Async | Workshop + async |
Outputdifferent | Context Diagram, Container Diagram, Component Diagram | Click Heatmap, Success Rate, Design Recommendations | Usability Issues, Severity List, Recommendations |
Tagsno overlap | ArchitectureCommunicationVisualization | UXNavigationFindabilityValidation | ValidationUXPrototype |
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