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| Criterion |  UX Research User Interviews |  UX Research Tree Testing |  UX Research Personas |  UX Research Card Sorting |
|---|---|---|---|---|
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 a navigation exists but search paths still fail, tree testing checks findability without visual distraction. The method shows whether labels, levels, and paths really lead to the intended destination. | 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 content only makes sense internally and users can't find the structure again, card sorting exposes their mental order. Terms, groups, and naming are then aligned with the target group's expectations. |
Complexitydifferent | Low | Medium | Medium | Low |
Timedifferent | 30–60 min per interview | 1-2 Tage | 1-3 Tage | 20-45 min |
Participantsdifferent | 1 participant per interview | Based on research question | Internes Team | Based on research question |
Formatdifferent | Workshop + async | Async | Workshop + async | Workshop + async |
Outputdifferent | Interview Notes, Themes, Insight Summary | Findability Metrics, Path Analysis, Revised IA | Persona Profiles, Needs Summary, Scenario Notes | Content groups, Label set, IA hypotheses |
Tagsno overlap | QualitativeResearchCustomerDiscovery | Information architectureNavigationFindability | ResearchCustomerSynthesis | Information architectureNavigationStructure |