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| Criterion |  UX Research Diary Study |  Product Discovery Pretotyping |  Product Strategy Lean Canvas |  Product Discovery Fake Door Test |
|---|---|---|---|---|
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 an early product bet still has too many open points, it brings target group, problem, and assumptions into a single view. It condenses the idea so core risks become nameable. | 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. |
Complexitydifferent | Medium | Low | Medium | Medium |
Timedifferent | 1-4 Wochen | Stunden bis wenige Tage | 45-90 min | 1-5 Tage |
Participantsdifferent | 5-20 | 1-4 | 1-6 | Nutzertraffic |
Formatdifferent | Async | Workshop + async | Workshop + async | Async |
Outputdifferent | Diary Entries, Longitudinal Patterns, Experience Timeline | Pretotyping sketch, Test setup, Conversion data, Go or no-go decision | Lean Canvas, Core Assumptions, Experiment Backlog | Click Data, Interest Signal, Learning Decision |
Tagsno overlap | UX researchTrackingBehavior | ValidationDemandMVP | StartupLeanAssumptionsBusiness model | ValidationExperimentsDemandDiscovery |