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| Criterion | ![]() Product Discovery Kano Model | ![]() UX Research Diary Study | ![]() Operations Gemba Walk |
|---|---|---|---|
Purposedifferent | 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. | 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 there is uncertainty about the real course of a process, the method brings observation to the place where work happens. It combines perception, follow-up questions, and process knowledge so decisions rest on actual workflows instead of assumptions. |
Complexitydifferent | Medium | Medium | Low |
Timedifferent | 1-2 Tage | 1-4 Wochen | 30-120 min |
Participantsdifferent | 10-50 | 5-20 | 2-6 |
Formatdifferent | Workshop + async | Async | Workshop |
Outputdifferent | Kano Matrix, Feature Classes, Priority Themes | Diary Entries, Longitudinal Patterns, Experience Timeline | Observation Notes, Improvement Ideas |
Tagsno overlap | SatisfactionPrioritizationCustomer | UX researchTrackingBehavior | LeanObservationProcessOperations |
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