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| Criterion |  UX Research Usability Testing |  Architecture Architecture Decision Record |  Architecture C4 Model |  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. | 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. | 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 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 | 15-45 min | 1-4 h | 4-5 Tage |
Participantsdifferent | Based on research question | 1-3 | 1-5 | 5-8 |
Formatdifferent | Workshop + async | Async | Workshop + async | Workshop |
Outputdifferent | Usability Issues, Severity List, Recommendations | ADR File, Decision Log, Rationale | Context Diagram, Container Diagram, Component Diagram | Prototype, Test Findings, Decision Rationale |
Tagsno overlap | ValidationUXPrototype | ArchitectureRationaleDocumentationGovernance | ArchitectureCommunicationVisualization | Design sprintPrototypeValidationInnovation |