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| Criterion |  Product Discovery Kano Model |  UX Research Card Sorting |  UX Research Tree Testing |  Delivery Cost of Delay |
|---|---|---|---|---|
Purposedifferent | 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. | 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. | Helps clarify scope, order, and delivery flow in concrete terms. It makes work, constraints, and sequence manageable. The result is captured as a Cost of Delay table and prioritization sequence. |
Complexitydifferent | Medium | Low | Medium | High |
Timedifferent | 1-2 Tage | 20-45 min | 1-2 Tage | 90-180 min |
Participantsdifferent | 10-50 | Based on research question | Based on research question | 3-8 |
Formatdifferent | Workshop + async | Workshop + async | Async | Workshop |
Outputdifferent | Kano Matrix, Feature Classes, Priority Themes | Content groups, Label set, IA hypotheses | Findability Metrics, Path Analysis, Revised IA | CoD Table, Prioritization Sequence |
Tagsno overlap | SatisfactionPrioritizationCustomer | Information architectureNavigationStructure | Information architectureNavigationFindability | PrioritizationDeliveryEconomicsDecision |