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| Criterion |  UX Research Diary Study |  Product Discovery Riskiest Assumption Test |  Product Discovery MVP Test Matrix |  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 an idea hinges on one critical unknown, it prioritizes testing that exact piece of uncertainty first. It separates problem, assumption, solution, and evidence. The result is captured as a prioritized list of assumptions, a test plan, and a result report. | 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. | 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 | 1-2 Wochen pro Iteration | 45-75 min | 25-40 min |
Participantsdifferent | 5-20 | 2-6 | 2-8 | 1-5 |
Formatdifferent | Async | Workshop + async | Workshop | Workshop + async |
Outputdifferent | Diary Entries, Longitudinal Patterns, Experience Timeline | Prioritized Assumption List, Test Plan, Results Report | Test Matrix, Test Plan | Learning Card with evidence and next action |
Tagsno overlap | UX researchTrackingBehavior | ExperimentsValidationDiscoveryAssumptions | ExperimentsValidationDiscoveryOptions | ExperimentsValidationDiscoveryLearning |