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| Criterion |  UX Research Tree Testing |  Product Discovery Opportunity Scoring |  Product Discovery Kano Model |  UX Research Card Sorting |
|---|---|---|---|---|
Purposedifferent | 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 opportunities need ranking by their effect, it makes importance and satisfaction directly comparable. It separates problem, assumption, solution, and evidence. The result is captured as an opportunity-score table and top outcomes. | When features need to be distinguished by their effect on satisfaction, it makes expectations and surprises comparable. It separates basic needs, performance contribution, and delight. | 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 | Medium | Medium | Medium | Low |
Timedifferent | 1-2 Tage | 60-120 min | 1-2 Tage | 20-45 min |
Participantsdifferent | Based on research question | 3-6 | 10-50 | Based on research question |
Formatdifferent | Async | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Findability Metrics, Path Analysis, Revised IA | Opportunity Score Table, Top Outcomes | Kano Matrix, Feature Classes, Priority Themes | Content groups, Label set, IA hypotheses |
Tagsno overlap | Information architectureNavigationFindability | PrioritizationDiscoveryOutcomesNeeds | SatisfactionPrioritizationCustomer | Information architectureNavigationStructure |