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| Criterion |  UX Research First-click Testing |  Growth A/B Testing |  Architecture Architecture Decision Record |  Architecture arc42 |
|---|---|---|---|---|
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. | When two variants compete, discussions quickly decide by taste rather than effect. A/B Testing checks behavior under controlled conditions and separates real improvement from chance or expectation effects. | 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. | arc42 structures architecture knowledge so teams can document system, decisions, and risks consistently. The template builds a living understanding of the architecture instead of scattered notes. |
Complexitydifferent | Low | High | Low | Low |
Timedifferent | 1-2 Tage | 1-4 Wochen | 15-45 min | 1-2 Tage |
Participantsdifferent | 10-30 | 1-6 | 1-3 | 1-4 |
Formatdifferent | Async | Async | Async | Workshop + async |
Outputdifferent | Click Heatmap, Success Rate, Design Recommendations | Experiment results, Decision log, Learning summary | ADR File, Decision Log, Rationale | Architecture Document, Context View, Runtime View, Deployment View |
Tagsno overlap | UXNavigationFindabilityValidation | ExperimentsGrowthAnalyticsValidation | ArchitectureRationaleDocumentationGovernance | ArchitectureDocumentationCommunication |