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| Criterion |  UX Research Diary Study |  Product Discovery Assumption Mapping |  Operations Fishbone Diagram |
|---|---|---|---|
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. | When assumptions still sit unordered in the room, it weighs uncertainty against leverage. It makes visible which hypotheses should be checked first. | When a problem has several possible contributing factors, the method sorts causes by cause areas. It prevents an initial hunch from blocking the view of other plausible drivers. |
Complexitydifferent | Medium | Medium | Low |
Timedifferent | 1-4 Wochen | 45-60 min | 30-60 min |
Participantsdifferent | 5-20 | 2-8 | 2-8 |
Formatdifferent | Async | Workshop + async | Workshop |
Outputdifferent | Diary Entries, Longitudinal Patterns, Experience Timeline | Assumption map, Test backlog, Risk ranking | Fishbone Diagram, Cause Categories, Investigation Backlog |
Tagsno overlap | UX researchTrackingBehavior | AssumptionsRiskExperimentsValidation | Root causeQualityOperations |
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