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| Criterion |  UX Design Customer Journey Canvas |  UX Research User Interviews |  Product Discovery Riskiest Assumption Test |  Product Discovery Fake Door Test |
|---|---|---|---|---|
Purposedifferent | 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 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 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 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 | 1-3 h | 30–60 min per interview | 1-2 Wochen pro Iteration | 1-5 Tage |
Participantsdifferent | 3-10 | 1 participant per interview | 2-6 | Nutzertraffic |
Formatdifferent | Workshop | Workshop + async | Workshop + async | Async |
Outputdifferent | Customer Journey Canvas, Pain Points, Experience Opportunities | Interview Notes, Themes, Insight Summary | Prioritized Assumption List, Test Plan, Results Report | Click Data, Interest Signal, Learning Decision |
Tagsno overlap | JourneyCustomerService designCanvas | QualitativeResearchCustomerDiscovery | ExperimentsValidationDiscoveryAssumptions | ValidationExperimentsDemandDiscovery |