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| Criterion |  UX Research User Interviews |  Product Strategy GIST Planning |  Product Discovery Fake Door Test |
|---|---|---|---|
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. | GIST Planning helps clarify target groups, value, goals, and priorities. It links customer value, product logic, and decision priorities, and captures the result as goals, an idea bank, and a step-project list. | 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 | Low | Medium | Medium |
Timedifferent | 30–60 min per interview | Wochen bis Monate je Goal | 1-5 Tage |
Participantsdifferent | 1 participant per interview | 3-10 | Nutzertraffic |
Formatdifferent | Workshop + async | Workshop + async | Async |
Outputdifferent | Interview Notes, Themes, Insight Summary | Goals, Idea bank, Step-project list, Tasks, Learning reports | Click Data, Interest Signal, Learning Decision |
Tagsno overlap | QualitativeResearchCustomerDiscovery | RoadmapOutcomesPlanningExperiments | ValidationExperimentsDemandDiscovery |
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