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| Criterion |  UX Research First-click Testing |  Operations Root Cause Analysis |  Product Discovery Smoke Test |  Operations 5 Whys |
|---|---|---|---|---|
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 a problem keeps recurring and the cause stays unclear, the method exposes the underlying mechanism. It separates symptom, guess, and robust explanation from one another. | 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. | 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. |
Complexitydifferent | Low | Medium | Low | Low |
Timedifferent | 1-2 Tage | 1-4 h | 1-5 Tage | 15-30 min |
Participantsdifferent | 10-30 | 3-8 | Nutzertraffic | 2-6 |
Formatdifferent | Async | Workshop + async | Async | Workshop |
Outputdifferent | Click Heatmap, Success Rate, Design Recommendations | Problem Statement, Cause Hypotheses, Confirmed Causes, Action Plan | Interest Metrics, Conversion Signal, Learning Note | Root cause notes, Countermeasures |
Tagsno overlap | UXNavigationFindabilityValidation | Root causeProblem solvingQualityIncident | ValidationExperimentsDemandGrowth | Root causeIncidentLeanProblem solving |