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| Criterion |  UX Research Card Sorting |  Decision Making Delphi Method |  UX Research Tree Testing |
|---|---|---|---|
Purposedifferent | 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. | 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 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. |
Complexitydifferent | Low | High | Medium |
Timedifferent | 20-45 min | 1-4 Wochen | 1-2 Tage |
Participantsdifferent | Based on research question | 6-30 Experten | Based on research question |
Formatdifferent | Workshop + async | Async | Async |
Outputdifferent | Content groups, Label set, IA hypotheses | Expert Forecast, Consensus Range, Assumption Notes | Findability Metrics, Path Analysis, Revised IA |
Tagsno overlap | Information architectureNavigationStructure | ForecastingExpertsDecisionStrategy | Information architectureNavigationFindability |
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