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| Criterion |  UX Research Diary Study |  UX Research Surveys |  Product Discovery Fake Door Test |  Product Discovery Learning Card |
|---|---|---|---|---|
Purposedifferent | 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 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 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. | The Learning Card connects traceable test results to a reasoned next action while keeping the limits of the insight visible. |
Complexitydifferent | Medium | Medium | Medium | Low |
Timedifferent | 1-4 Wochen | 3-14 Tage | 1-5 Tage | 25-40 min |
Participantsdifferent | 5-20 | 50+ | Nutzertraffic | 1-5 |
Formatdifferent | Async | Async | Async | Workshop + async |
Outputdifferent | Diary Entries, Longitudinal Patterns, Experience Timeline | Survey Results, Charts, Segment Insights | Click Data, Interest Signal, Learning Decision | Learning Card with evidence and next action |
Tagsno overlap | UX researchTrackingBehavior | QuantitativeResearchValidation | ValidationExperimentsDemandDiscovery | ExperimentsValidationDiscoveryLearning |