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| Criterion |  Product Discovery Kano Model |  UX Research Card Sorting |  Operations Gemba Walk |  Operations ABC Analysis |
|---|---|---|---|---|
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. | With many similar objects of differing economic significance, the method prioritizes effort by effect. It separates what needs regular steering from what rarely needs attention. |
Complexitydifferent | Medium | Low | Low | Low |
Timedifferent | 1-2 Tage | 20-45 min | 30-120 min | 30-60 min |
Participantsdifferent | 10-50 | Based on research question | 2-6 | 1-5 |
Formatdifferent | Workshop + async | Workshop + async | Workshop | Async |
Outputdifferent | Kano Matrix, Feature Classes, Priority Themes | Content groups, Label set, IA hypotheses | Observation Notes, Improvement Ideas | ABC Classification, Focus Rules, Control List |
Tagsno overlap | SatisfactionPrioritizationCustomer | Information architectureNavigationStructure | LeanObservationProcessOperations | PrioritizationOperationsPortfolio |