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| Criterion |  Decision Making Delphi Method |  UX Research Tree Testing |  Decision Making Force Field Analysis |  UX Research Card Sorting |
|---|---|---|---|---|
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 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. | In change initiatives, supporting and restraining forces sit at the table at the same time. Force Field Analysis makes these tensions explicit and shows where change can be pushed forward by strengthening or relieving. | 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 | High | Medium | Low | Low |
Timedifferent | 1-4 Wochen | 1-2 Tage | 45-90 min | 20-45 min |
Participantsdifferent | 6-30 Experten | Based on research question | 3-12 | Based on research question |
Formatdifferent | Async | Async | Workshop | Workshop + async |
Outputdifferent | Expert Forecast, Consensus Range, Assumption Notes | Findability Metrics, Path Analysis, Revised IA | Force Field Map, Change Levers, Risk Notes | Content groups, Label set, IA hypotheses |
Tagsno overlap | ForecastingExpertsDecisionStrategy | Information architectureNavigationFindability | ChangeDecisionStrategy | Information architectureNavigationStructure |