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| Criterion |  UX Research Diary Study |  Operations Kaizen Event |  Agile WSJF |
|---|---|---|---|
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. | For a tightly scoped process segment with noticeable waste, the method bundles shared energy for change. It suits situations that call for fast learning loops and visible adjustments. | When many tasks compete for the same capacity, it orders work by economic impact. It makes time lost, benefit, and effort comparable together. |
Complexitydifferent | Medium | Medium | High |
Timedifferent | 1-4 Wochen | 0.5-5 Tage | 45-90 min |
Participantsdifferent | 5-20 | 4-10 | 3-10 |
Formatdifferent | Async | Workshop | Workshop |
Outputdifferent | Diary Entries, Longitudinal Patterns, Experience Timeline | Kaizen Charter, Waste List, Improvement Experiments, Standard Work Update | Ranked Backlog, Cost-of-Delay Assumptions |
Tagsno overlap | UX researchTrackingBehavior | LeanContinuous improvementOperations | LeanEconomicsSequencePrioritization |
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