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| Criterion |  UX Research First-click Testing |  Growth A/B Testing |  Operations 5 Whys |  Product Discovery Smoke Test |
|---|---|---|---|---|
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. | For a single, hard-to-explain deviation, the method exposes the causal chain behind the visible symptom. It keeps the cause open until a controllable condition emerges instead of a mere description. | When demand only needs to be roughly verified, it tests interest with minimal effort. It measures whether people would take a next step at all. |
Complexitydifferent | Low | High | Low | Low |
Timedifferent | 1-2 Tage | 1-4 Wochen | 15-30 min | 1-5 Tage |
Participantsdifferent | 10-30 | 1-6 | 2-6 | Nutzertraffic |
Formatdifferent | Async | Async | Workshop | Async |
Outputdifferent | Click Heatmap, Success Rate, Design Recommendations | Experiment results, Decision log, Learning summary | Root cause notes, Countermeasures | Interest Metrics, Conversion Signal, Learning Note |
Tagsno overlap | UXNavigationFindabilityValidation | ExperimentsGrowthAnalyticsValidation | Root causeIncidentLeanProblem solving | ValidationExperimentsDemandGrowth |