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| Criterion |  UX Research Diary Study |  Innovation Lean Startup |  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. | For uncertain business assumptions, the method forces the idea into contact with real market reactions early. It separates wishful picture, assumption, and observable behavior, so that learning becomes faster than planning. This translates uncertainty into measurable insight. | 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 | Wochen bis Monate je Lernzyklus | 25-40 min | 45-75 min |
Participantsdifferent | 5-20 | 2-8 | 1-5 | 2-8 |
Formatdifferent | Async | Workshop + async | Workshop + async | Workshop |
Outputdifferent | Diary Entries, Longitudinal Patterns, Experience Timeline | Hypothesis list, MVPs, Learning reports, Pivot or persevere decision | Learning Card with evidence and next action | Test Matrix, Test Plan |
Tagsno overlap | UX researchTrackingBehavior | LeanStartupValidationMVP | ExperimentsValidationDiscoveryLearning | ExperimentsValidationDiscoveryOptions |