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| Criterion |  Operations DMAIC |  UX Research Diary Study |
|---|---|---|
Purposedifferent | For a process problem with fluctuating performance, the method brings analysis and improvement into a disciplined sequence. It creates a framework in which numbers, causes, and control come together. | 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. |
Complexitydifferent | High | Medium |
Timedifferent | 2-12 Wochen | 1-4 Wochen |
Participantsdifferent | 3-10 | 5-20 |
Formatdifferent | Workshop + async | Async |
Outputdifferent | Project Charter, Measurement Plan, Cause Analysis, Control Plan | Diary Entries, Longitudinal Patterns, Experience Timeline |
Tagsno overlap | Continuous improvementQualityProcess improvement | UX researchTrackingBehavior |
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