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| Criterion |  UX Research Diary Study |  Product Discovery Kano Model |  Operations Ivy Lee Method |
|---|---|---|---|
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 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 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. |
Complexitydifferent | Medium | Medium | Low |
Timedifferent | 1-4 Wochen | 1-2 Tage | 5-10 min daily |
Participantsdifferent | 5-20 | 10-50 | 1 |
Formatdifferent | Async | Workshop + async | Async |
Outputdifferent | Diary Entries, Longitudinal Patterns, Experience Timeline | Kano Matrix, Feature Classes, Priority Themes | Daily Priority List, Completion Notes |
Tagsno overlap | UX researchTrackingBehavior | SatisfactionPrioritizationCustomer | PrioritizationProductivityExecution |
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