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| Criterion |  UX Research Diary Study |  Growth A/B Testing |  Decision Making DACI |  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 two variants compete, discussions quickly decide by taste rather than effect. A/B Testing checks behavior under controlled conditions and separates real improvement from chance or expectation effects. | In cross-functional decisions, responsibilities quickly blur between approval, influence, and execution. DACI arranges these roles so decision pressure, contribution, and information stay cleanly separated. | When assumptions still sit unordered in the room, it weighs uncertainty against leverage. It makes visible which hypotheses should be checked first. |
Complexitydifferent | Medium | High | Low | Medium |
Timedifferent | 1-4 Wochen | 1-4 Wochen | 30-60 min | 45-60 min |
Participantsdifferent | 5-20 | 1-6 | 2-10 | 2-8 |
Formatdifferent | Async | Async | Workshop + async | Workshop + async |
Outputdifferent | Diary Entries, Longitudinal Patterns, Experience Timeline | Experiment results, Decision log, Learning summary | DACI Matrix, Decision Owner, Decision Log | Assumption map, Test backlog, Risk ranking |
Tagsno overlap | UX researchTrackingBehavior | ExperimentsGrowthAnalyticsValidation | DecisionRolesGovernanceAlignment | AssumptionsRiskExperimentsValidation |