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| Criterion |  UX Research Surveys |  Operations Root Cause Analysis |  Product Discovery Smoke Test |  Growth A/B Testing |
|---|---|---|---|---|
Purposedifferent | When a topic needs to be validated broadly and many people can answer the same question, surveys gather structured feedback in a scalable form. Answers become comparable and segmentable instead of remaining merely anecdotal. | 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. | 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. |
Complexitydifferent | Medium | Medium | Low | High |
Timedifferent | 3-14 Tage | 1-4 h | 1-5 Tage | 1-4 Wochen |
Participantsdifferent | 50+ | 3-8 | Nutzertraffic | 1-6 |
Formatdifferent | Async | Workshop + async | Async | Async |
Outputdifferent | Survey Results, Charts, Segment Insights | Problem Statement, Cause Hypotheses, Confirmed Causes, Action Plan | Interest Metrics, Conversion Signal, Learning Note | Experiment results, Decision log, Learning summary |
Tagsno overlap | QuantitativeResearchValidation | Root causeProblem solvingQualityIncident | ValidationExperimentsDemandGrowth | ExperimentsGrowthAnalyticsValidation |