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| Criterion |  UX Research Diary Study |  Operations A3 Problem Solving |  Operations ABC Analysis |
|---|---|---|---|
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 complex deviation with several people involved, the method bundles problem, analysis, and decision onto one page. It creates a shared working space where causes, countermeasures, and follow-up fit together. | With many similar objects of differing economic significance, the method prioritizes effort by effect. It separates what needs regular steering from what rarely needs attention. |
Complexitydifferent | Medium | Medium | Low |
Timedifferent | 1-4 Wochen | 45-90 min | 30-60 min |
Participantsdifferent | 5-20 | 2-5 | 1-5 |
Formatdifferent | Async | Workshop + async | Async |
Outputdifferent | Diary Entries, Longitudinal Patterns, Experience Timeline | A3 Report, Action Plan, Root Cause Analysis | ABC Classification, Focus Rules, Control List |
Tagsno overlap | UX researchTrackingBehavior | LeanProblem solvingCoachingOperations | PrioritizationOperationsPortfolio |
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