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| Criterion |  UX Research User Interviews |  Decision Making Delphi Method |  UX Research Personas |
|---|---|---|---|
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 knowledge is distributed and direct dominance should be avoided, groups quickly fall under the sway of their opinion leaders. The Delphi Method gathers assessments iteratively and gradually brings expert judgments closer together. | 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. |
Complexitydifferent | Low | High | Medium |
Timedifferent | 30–60 min per interview | 1-4 Wochen | 1-3 Tage |
Participantsdifferent | 1 participant per interview | 6-30 Experten | Internes Team |
Formatdifferent | Workshop + async | Async | Workshop + async |
Outputdifferent | Interview Notes, Themes, Insight Summary | Expert Forecast, Consensus Range, Assumption Notes | Persona Profiles, Needs Summary, Scenario Notes |
Tagsno overlap | QualitativeResearchCustomerDiscovery | ForecastingExpertsDecisionStrategy | ResearchCustomerSynthesis |
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