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| Criterion |  UX Research Diary Study |  Product Strategy Lean Canvas |  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 an early product bet still has too many open points, it brings target group, problem, and assumptions into a single view. It condenses the idea so core risks become nameable. | 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 | 45-90 min | 30-60 min |
Participantsdifferent | 5-20 | 1-6 | 2-8 |
Formatdifferent | Async | Workshop + async | Workshop |
Outputdifferent | Diary Entries, Longitudinal Patterns, Experience Timeline | Lean Canvas, Core Assumptions, Experiment Backlog | Fishbone Diagram, Cause Categories, Investigation Backlog |
Tagsno overlap | UX researchTrackingBehavior | StartupLeanAssumptionsBusiness model | Root causeQualityOperations |
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