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| Criterion |  UX Research Usability Testing |  Architecture C4 Model |  UX Research First-click Testing |  Innovation Design Sprint |
|---|---|---|---|---|
Purposedifferent | 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. | 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 the product question is unclear and time pressure is high, the method takes a team from an open idea to a testable solution. It connects problem understanding, decision, and learning in one compact format, lowering the risk of spending a lot of energy on a mere guess. |
Complexitydifferent | Medium | Low | Low | High |
Timedifferent | 1-2 h je Session | 1-4 h | 1-2 Tage | 4-5 Tage |
Participantsdifferent | Based on research question | 1-5 | 10-30 | 5-8 |
Formatdifferent | Workshop + async | Workshop + async | Async | Workshop |
Outputdifferent | Usability Issues, Severity List, Recommendations | Context Diagram, Container Diagram, Component Diagram | Click Heatmap, Success Rate, Design Recommendations | Prototype, Test Findings, Decision Rationale |
Tagsno overlap | ValidationUXPrototype | ArchitectureCommunicationVisualization | UXNavigationFindabilityValidation | Design sprintPrototypeValidationInnovation |