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| Criterion |  Decision Making Delphi Method |  UX Research Personas |  UX Research User Interviews |
|---|---|---|---|
Purposedifferent | 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. | 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. |
Complexitydifferent | High | Medium | Low |
Timedifferent | 1-4 Wochen | 1-3 Tage | 30–60 min per interview |
Participantsdifferent | 6-30 Experten | Internes Team | 1 participant per interview |
Formatdifferent | Async | Workshop + async | Workshop + async |
Outputdifferent | Expert Forecast, Consensus Range, Assumption Notes | Persona Profiles, Needs Summary, Scenario Notes | Interview Notes, Themes, Insight Summary |
Tagsno overlap | ForecastingExpertsDecisionStrategy | ResearchCustomerSynthesis | QualitativeResearchCustomerDiscovery |
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