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| Criterion |  UX Research User Interviews |  Product Discovery Kano Model |  Facilitation Nominal Group Technique |
|---|---|---|---|
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 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 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. |
Complexitydifferent | Low | Medium | Medium |
Timedifferent | 30–60 min per interview | 1-2 Tage | 60-120 min |
Participantsdifferent | 1 participant per interview | 10-50 | 5-12 |
Formatdifferent | Workshop + async | Workshop + async | Workshop |
Outputdifferent | Interview Notes, Themes, Insight Summary | Kano Matrix, Feature Classes, Priority Themes | Ranked Ideas, Clarified Options, Group Priority |
Tagsno overlap | QualitativeResearchCustomerDiscovery | SatisfactionPrioritizationCustomer | FacilitationPrioritizationVotingInclusion |
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