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| Criterion |  UX Research Diary Study |  Operations 8D Problem Solving |  Agile Specification by Example |
|---|---|---|---|
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 an acute quality or delivery problem, the method structures immediate protection and root cause work together. It keeps the situation stable while the actual cause is investigated cleanly. | When business rules need to become precise, it ties language, example, and test together. It sorts work by value, risk, and delivery ability. The result is captured as an Example Table and Acceptance Tests. |
Complexitydifferent | Medium | High | Medium |
Timedifferent | 1-4 Wochen | 1-6 Wochen | 60-90 min pro Feature |
Participantsdifferent | 5-20 | 4-10 | 3-6 |
Formatdifferent | Async | Workshop + async | Workshop |
Outputdifferent | Diary Entries, Longitudinal Patterns, Experience Timeline | 8D Report, Containment Plan, Root Cause Evidence, Corrective Action Plan | Example Table, Acceptance Tests |
Tagsno overlap | UX researchTrackingBehavior | QualityProblem solvingRoot cause | AgileRequirementsExamplesBehavior-Driven Development |
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