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| Criterion |  UX Research Diary Study |  Product Discovery Kano Model |  Delivery Cost of Delay |
|---|---|---|---|
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. | Helps clarify scope, order, and delivery flow in concrete terms. It makes work, constraints, and sequence manageable. The result is captured as a Cost of Delay table and prioritization sequence. |
Complexitydifferent | Medium | Medium | High |
Timedifferent | 1-4 Wochen | 1-2 Tage | 90-180 min |
Participantsdifferent | 5-20 | 10-50 | 3-8 |
Formatdifferent | Async | Workshop + async | Workshop |
Outputdifferent | Diary Entries, Longitudinal Patterns, Experience Timeline | Kano Matrix, Feature Classes, Priority Themes | CoD Table, Prioritization Sequence |
Tagsno overlap | UX researchTrackingBehavior | SatisfactionPrioritizationCustomer | PrioritizationDeliveryEconomicsDecision |
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