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| Criterion |  UX Research User Interviews |  Product Discovery Opportunity Interview |  Operations Ivy Lee Method |  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 opportunities are still hidden behind signals of need, it structures conversations around needs and obstacles. It looks for patterns that lead to new product opportunities. | With a restless workday full of too many open items, the method creates radical simplicity. It directs attention to a short sequence instead of a broad, still-open field. | 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 | Low | Medium |
Timedifferent | 30–60 min per interview | 30-60 min je Interview | 5-10 min daily | 1-2 Tage |
Participantsdifferent | 1 participant per interview | 5-12 Interviews | 1 | 10-50 |
Formatdifferent | Workshop + async | Workshop + async | Async | Workshop + async |
Outputdifferent | Interview Notes, Themes, Insight Summary | Interview Notes, Opportunity Themes, Customer Quotes | Daily Priority List, Completion Notes | Kano Matrix, Feature Classes, Priority Themes |
Tagsno overlap | QualitativeResearchCustomerDiscovery | DiscoveryInterviewsOpportunityCustomer | PrioritizationProductivityExecution | SatisfactionPrioritizationCustomer |