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| Criterion |  Operations DMAIC |  UX Research Diary Study |  UX Research Contextual Inquiry |
|---|---|---|---|
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. | When work processes are known only from accounts and the real context stays hidden, Contextual Inquiry makes behavior at the workplace visible. Observation and follow-up questions together show how people actually work, get interrupted, and improvise. |
Complexitydifferent | High | Medium | Medium |
Timedifferent | 2-12 Wochen | 1-4 Wochen | 1-3 Wochen |
Participantsdifferent | 3-10 | 5-20 | 4-12 Beobachtungen |
Formatdifferent | Workshop + async | Async | Workshop + async |
Outputdifferent | Project Charter, Measurement Plan, Cause Analysis, Control Plan | Diary Entries, Longitudinal Patterns, Experience Timeline | Field Notes, Workflow Insights, Pain Points |
Tagsno overlap | Continuous improvementQualityProcess improvement | UX researchTrackingBehavior | UX researchObservationContext |
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Methods with strong topical overlap with the current selection, not yet in the comparison.
