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| Criterion |  UX Research User Interviews |  Product Discovery Kano Model |  Decision Making Trade-off Analysis |
|---|---|---|---|
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. | With limited resources, quality, speed, cost, and risk almost always compete with each other. Trade-off Analysis makes these tensions explicit and prevents decisions from producing hidden side effects. |
Complexitydifferent | Low | Medium | Medium |
Timedifferent | 30–60 min per interview | 1-2 Tage | 45-120 min |
Participantsdifferent | 1 participant per interview | 10-50 | 2-8 |
Formatsame | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Interview Notes, Themes, Insight Summary | Kano Matrix, Feature Classes, Priority Themes | Trade-off Matrix, Criteria List, Decision Rationale, Accepted Downsides |
Tagsno overlap | QualitativeResearchCustomerDiscovery | SatisfactionPrioritizationCustomer | TradeoffsDecisionCriteriaOptions |
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