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| Criterion |  Product Discovery Kano Model |  UX Research Card Sorting |  Operations Gemba Walk |
|---|---|---|---|
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 there is uncertainty about the real course of a process, the method brings observation to the place where work happens. It combines perception, follow-up questions, and process knowledge so decisions rest on actual workflows instead of assumptions. |
Complexitydifferent | Medium | Low | Low |
Timedifferent | 1-2 Tage | 20-45 min | 30-120 min |
Participantsdifferent | 10-50 | Based on research question | 2-6 |
Formatdifferent | Workshop + async | Workshop + async | Workshop |
Outputdifferent | Kano Matrix, Feature Classes, Priority Themes | Content groups, Label set, IA hypotheses | Observation Notes, Improvement Ideas |
Tagsno overlap | SatisfactionPrioritizationCustomer | Information architectureNavigationStructure | LeanObservationProcessOperations |
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