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| Criterion |  UX Research Diary Study |  Product Discovery Kano Model |  Product Discovery Test Card |  Product Discovery Learning Card |
|---|---|---|---|---|
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. | The Test Card turns a critical assumption into a testable claim and specifies in advance which result counts as success. | The Learning Card connects traceable test results to a reasoned next action while keeping the limits of the insight visible. |
Complexitydifferent | Medium | Medium | Low | Low |
Timedifferent | 1-4 Wochen | 1-2 Tage | 20-35 min | 25-40 min |
Participantsdifferent | 5-20 | 10-50 | 1-5 | 1-5 |
Formatdifferent | Async | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Diary Entries, Longitudinal Patterns, Experience Timeline | Kano Matrix, Feature Classes, Priority Themes | Test Card with a pre-set threshold | Learning Card with evidence and next action |
Tagsno overlap | UX researchTrackingBehavior | SatisfactionPrioritizationCustomer | ExperimentsValidationDiscoveryHypothesis | ExperimentsValidationDiscoveryLearning |