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| Criterion |  UX Research Diary Study |  Product Discovery Pretotyping |  UX Research Card Sorting |  Innovation Lean Startup |
|---|---|---|---|---|
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. | Pretotyping clarifies whether a customer problem and solution idea create enough real demand. It separates problem, assumption, solution, and evidence, and captures the result as a pretotyping sketch, test setup, and conversion data. | When content only makes sense internally and users can't find the structure again, card sorting exposes their mental order. Terms, groups, and naming are then aligned with the target group's expectations. | 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. |
Complexitydifferent | Medium | Low | Low | Medium |
Timedifferent | 1-4 Wochen | Stunden bis wenige Tage | 20-45 min | Wochen bis Monate je Lernzyklus |
Participantsdifferent | 5-20 | 1-4 | Based on research question | 2-8 |
Formatdifferent | Async | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Diary Entries, Longitudinal Patterns, Experience Timeline | Pretotyping sketch, Test setup, Conversion data, Go or no-go decision | Content groups, Label set, IA hypotheses | Hypothesis list, MVPs, Learning reports, Pivot or persevere decision |
Tagsno overlap | UX researchTrackingBehavior | ValidationDemandMVP | Information architectureNavigationStructure | LeanStartupValidationMVP |