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| Criterion |  UX Research Diary Study |  UX Research User Interviews |  Product Discovery Opportunity Interview |
|---|---|---|---|
Purposedifferent | When experiences build up over days or weeks and a single session cannot capture them, Diary Study records the course of everyday life. Recurring triggers, moods, and habits become visible this way, beyond the sharpness of memory. | 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. |
Complexitydifferent | Medium | Low | Medium |
Timedifferent | 1-4 Wochen | 30–60 min per interview | 30-60 min je Interview |
Participantsdifferent | 5-20 | 1 participant per interview | 5-12 Interviews |
Formatdifferent | Async | Workshop + async | Workshop + async |
Outputdifferent | Diary Entries, Longitudinal Patterns, Experience Timeline | Interview Notes, Themes, Insight Summary | Interview Notes, Opportunity Themes, Customer Quotes |
Tagsno overlap | UX researchTrackingBehavior | QualitativeResearchCustomerDiscovery | DiscoveryInterviewsOpportunityCustomer |
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