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| Criterion |  UX Research First-click Testing |  Architecture C4 Model |  Architecture Request for Comments |  Architecture Architecture Decision Record |
|---|---|---|---|---|
Purposedifferent | 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. | 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. | An RFC clarifies architecture context, options, and consequences. It structures technical context, alternatives, tradeoffs, open questions, and review feedback, and captures the result as an RFC document, reviewer comments, and a decision rationale. | 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 | Low | Medium | Low |
Timedifferent | 1-2 Tage | 1-4 h | 1-3 Wochen vom Draft bis zur Entscheidung | 15-45 min |
Participantsdifferent | 10-30 | 1-5 | 3-20 Reviewer | 1-3 |
Formatdifferent | Async | Workshop + async | Async | Async |
Outputdifferent | Click Heatmap, Success Rate, Design Recommendations | Context Diagram, Container Diagram, Component Diagram | RFC document, Reviewer comments, Decision rationale, Follow-up ADR or tickets | ADR File, Decision Log, Rationale |
Tagsno overlap | UXNavigationFindabilityValidation | ArchitectureCommunicationVisualization | ArchitectureDecisionAsyncGovernance | ArchitectureRationaleDocumentationGovernance |