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| Criterion |  UX Research Diary Study |  Product Discovery Assumption Mapping |  Decision Making Constraint Analysis |  Product Discovery Riskiest Assumption 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. | When assumptions still sit unordered in the room, it weighs uncertainty against leverage. It makes visible which hypotheses should be checked first. | When an initiative stalls, the limit often lies not in the idea but in hard or soft boundary conditions. Constraint Analysis separates these limits and shows which of them can actually be shaped. | When an idea hinges on one critical unknown, it prioritizes testing that exact piece of uncertainty first. It separates problem, assumption, solution, and evidence. The result is captured as a prioritized list of assumptions, a test plan, and a result report. |
Complexitydifferent | Medium | Medium | Low | Medium |
Timedifferent | 1-4 Wochen | 45-60 min | 30-90 min | 1-2 Wochen pro Iteration |
Participantsdifferent | 5-20 | 2-8 | 2-8 | 2-6 |
Formatdifferent | Async | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Diary Entries, Longitudinal Patterns, Experience Timeline | Assumption map, Test backlog, Risk ranking | Constraint List, Hard/Soft Classification, Option Impact Notes, Decision Boundaries | Prioritized Assumption List, Test Plan, Results Report |
Tagsno overlap | UX researchTrackingBehavior | AssumptionsRiskExperimentsValidation | ConstraintsDecisionPlanningOptions | ExperimentsValidationDiscoveryAssumptions |