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| Criterion |  UX Research Contextual Inquiry |  Growth A/B Testing |  UX Research Diary Study |  Product Discovery Fake Door Test |
|---|---|---|---|---|
Purposedifferent | When work processes are known only from accounts and the real context stays hidden, Contextual Inquiry makes behavior at the workplace visible. Observation and follow-up questions together show how people actually work, get interrupted, and improvise. | 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. | When experiences build up over days or weeks and a single session cannot capture them, Diary Study records the course of everyday life. Recurring triggers, moods, and habits become visible this way, beyond the sharpness of memory. | When demand is still unclear, it measures interest in a feature before it is built. It separates real behavior from polite agreement and deliberately keeps build effort small. |
Complexitydifferent | Medium | High | Medium | Medium |
Timedifferent | 1-3 Wochen | 1-4 Wochen | 1-4 Wochen | 1-5 Tage |
Participantsdifferent | 4-12 Beobachtungen | 1-6 | 5-20 | Nutzertraffic |
Formatdifferent | Workshop + async | Async | Async | Async |
Outputdifferent | Field Notes, Workflow Insights, Pain Points | Experiment results, Decision log, Learning summary | Diary Entries, Longitudinal Patterns, Experience Timeline | Click Data, Interest Signal, Learning Decision |
Tagsno overlap | UX researchObservationContext | ExperimentsGrowthAnalyticsValidation | UX researchTrackingBehavior | ValidationExperimentsDemandDiscovery |