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| Criterion |  UX Research Diary Study |  UX Research Usability Testing |  Product Discovery Learning Card |  Product Discovery MVP Test Matrix |
|---|---|---|---|---|
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 product is built but people get stuck on tasks, usability testing shows the friction at concrete points. Observed use instead of self-report makes visible where orientation, understanding, or interaction breaks down. | The Learning Card connects traceable test results to a reasoned next action while keeping the limits of the insight visible. | When several minimal variants compete to answer the same question, it makes comparing and choosing between them cleaner. It separates problem, assumption, solution, and evidence. The result is captured as a Test Matrix and a Test Plan. |
Complexitydifferent | Medium | Medium | Low | Medium |
Timedifferent | 1-4 Wochen | 1-2 h je Session | 25-40 min | 45-75 min |
Participantsdifferent | 5-20 | Based on research question | 1-5 | 2-8 |
Formatdifferent | Async | Workshop + async | Workshop + async | Workshop |
Outputdifferent | Diary Entries, Longitudinal Patterns, Experience Timeline | Usability Issues, Severity List, Recommendations | Learning Card with evidence and next action | Test Matrix, Test Plan |
Tagsno overlap | UX researchTrackingBehavior | ValidationUXPrototype | ExperimentsValidationDiscoveryLearning | ExperimentsValidationDiscoveryOptions |