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| Criterion |  UX Research User Interviews |  UX Design Customer Journey Canvas |  Product Discovery Riskiest Assumption Test |  Product Discovery Assumption Mapping |
|---|---|---|---|---|
Purposedifferent | When teams derive needs only from assumptions and real motives are missing, user interviews give direct access to behavior and meaning. Conversations from the target group's everyday life make patterns, tensions, and open questions solidly visible. | When a journey needs to be understood across several phases, it arranges experience, touchpoints, and opportunities into one picture. It makes gaps and friction along the user path clear. | 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. | When assumptions still sit unordered in the room, it weighs uncertainty against leverage. It makes visible which hypotheses should be checked first. |
Complexitydifferent | Low | Medium | Medium | Medium |
Timedifferent | 30–60 min per interview | 1-3 h | 1-2 Wochen pro Iteration | 45-60 min |
Participantsdifferent | 1 participant per interview | 3-10 | 2-6 | 2-8 |
Formatdifferent | Workshop + async | Workshop | Workshop + async | Workshop + async |
Outputdifferent | Interview Notes, Themes, Insight Summary | Customer Journey Canvas, Pain Points, Experience Opportunities | Prioritized Assumption List, Test Plan, Results Report | Assumption map, Test backlog, Risk ranking |
Tagsno overlap | QualitativeResearchCustomerDiscovery | JourneyCustomerService designCanvas | ExperimentsValidationDiscoveryAssumptions | AssumptionsRiskExperimentsValidation |