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| Criterion |  UX Research User Interviews |  Facilitation Nominal Group Technique |  Product Discovery Kano Model |
|---|---|---|---|
Purposedifferent | 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. | When loud voices could dominate a round, Nominal Group Technique protects individual thinking time from group effects. It collects ideas separately first and only then enables shared weighting. | 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. |
Complexitydifferent | Low | Medium | Medium |
Timedifferent | 30–60 min per interview | 60-120 min | 1-2 Tage |
Participantsdifferent | 1 participant per interview | 5-12 | 10-50 |
Formatdifferent | Workshop + async | Workshop | Workshop + async |
Outputdifferent | Interview Notes, Themes, Insight Summary | Ranked Ideas, Clarified Options, Group Priority | Kano Matrix, Feature Classes, Priority Themes |
Tagsno overlap | QualitativeResearchCustomerDiscovery | FacilitationPrioritizationVotingInclusion | SatisfactionPrioritizationCustomer |
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