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| Criterion |  UX Research Diary Study |  Operations Kaizen Event |  Operations After-Action Review |
|---|---|---|---|
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. | After missions or project phases with unclear outcomes, the method makes visible what actually happened and what can be learned from it. It separates course, effect, and causes so experience turns into solid improvement. |
Complexitydifferent | Medium | Medium | Low |
Timedifferent | 1-4 Wochen | 0.5-5 Tage | 20-45 min |
Participantsdifferent | 5-20 | 4-10 | 3-12 |
Formatdifferent | Async | Workshop | Workshop + async |
Outputdifferent | Diary Entries, Longitudinal Patterns, Experience Timeline | Kaizen Charter, Waste List, Improvement Experiments, Standard Work Update | Lessons learned, Action items, Event summary |
Tagsno overlap | UX researchTrackingBehavior | LeanContinuous improvementOperations | LearningOperationsImprovement |
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Methods with strong topical overlap with the current selection, not yet in the comparison.
