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| Criterion |  Product Discovery Kano Model |  UX Research First-click Testing |  UX Research Personas |  UX Research User Interviews |
|---|---|---|---|---|
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 users immediately turn the wrong way on a screen or wireframe, first click testing checks initial orientation at high speed. The first click shows early whether expectation, labeling, and wayfinding fit together. | When target groups stay too vague and teams talk about the same people differently, personas create a shared, solid picture of usage. Condensed profiles make needs, contexts, and differences tangible enough for decisions. | When teams derive needs only from assumptions and real motives are missing, user interviews give direct access to behavior and meaning. Conversations from the target group's everyday life make patterns, tensions, and open questions solidly visible. |
Complexitydifferent | Medium | Low | Medium | Low |
Timedifferent | 1-2 Tage | 1-2 Tage | 1-3 Tage | 30–60 min per interview |
Participantsdifferent | 10-50 | 10-30 | Internes Team | 1 participant per interview |
Formatdifferent | Workshop + async | Async | Workshop + async | Workshop + async |
Outputdifferent | Kano Matrix, Feature Classes, Priority Themes | Click Heatmap, Success Rate, Design Recommendations | Persona Profiles, Needs Summary, Scenario Notes | Interview Notes, Themes, Insight Summary |
Tagsno overlap | SatisfactionPrioritizationCustomer | UXNavigationFindabilityValidation | ResearchCustomerSynthesis | QualitativeResearchCustomerDiscovery |