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| Criterion |  UX Research Diary Study |  Product Discovery Opportunity Solution Tree |  Decision Making Assumption Surfacing |  Product Discovery Assumption Mapping |
|---|---|---|---|---|
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 discovery keeps swinging between goals, ideas, and learning loops, it creates clear steering logic. It connects the desired outcome, opportunities, and experiments into a legible structure. | Plans often contain assumptions that were never openly stated and remain dangerous precisely because of that. Assumption Surfacing makes these silent premises visible and prioritizes which of them carry the initiative or could sink it. | When assumptions still sit unordered in the room, it weighs uncertainty against leverage. It makes visible which hypotheses should be checked first. |
Complexitydifferent | Medium | Medium | Low | Medium |
Timedifferent | 1-4 Wochen | 1-2 h Setup, laufend | 45-90 min | 45-60 min |
Participantsdifferent | 5-20 | 2-6 | 2-8 | 2-8 |
Formatdifferent | Async | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Diary Entries, Longitudinal Patterns, Experience Timeline | Opportunity Solution Tree, Experiment Backlog, Learning Log | Assumption List, Critical Assumptions, Learning Plan | Assumption map, Test backlog, Risk ranking |
Tagsno overlap | UX researchTrackingBehavior | DiscoveryOutcomesExperimentsOpportunity | AssumptionsRiskDecisionDiscovery | AssumptionsRiskExperimentsValidation |