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| Criterion |  UX Research User Interviews |  UX Research Personas |  Product Discovery Assumption Mapping |  Decision Making Assumption Surfacing |
|---|---|---|---|---|
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 target groups stay too vague and teams talk about the same people differently, personas create a shared, solid picture of usage. Condensed profiles make needs, contexts, and differences tangible enough for decisions. | When assumptions still sit unordered in the room, it weighs uncertainty against leverage. It makes visible which hypotheses should be checked first. | Plans often contain assumptions that were never openly stated and remain dangerous precisely because of that. Assumption Surfacing makes these silent premises visible and prioritizes which of them carry the initiative or could sink it. |
Complexitydifferent | Low | Medium | Medium | Low |
Timedifferent | 30–60 min per interview | 1-3 Tage | 45-60 min | 45-90 min |
Participantsdifferent | 1 participant per interview | Internes Team | 2-8 | 2-8 |
Formatsame | Workshop + async | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Interview Notes, Themes, Insight Summary | Persona Profiles, Needs Summary, Scenario Notes | Assumption map, Test backlog, Risk ranking | Assumption List, Critical Assumptions, Learning Plan |
Tagsno overlap | QualitativeResearchCustomerDiscovery | ResearchCustomerSynthesis | AssumptionsRiskExperimentsValidation | AssumptionsRiskDecisionDiscovery |