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| Criterion |  UX Research Diary Study |  Growth A/B Testing |  Operations PDCA Cycle |
|---|---|---|---|
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 two variants compete, discussions quickly decide by taste rather than effect. A/B Testing checks behavior under controlled conditions and separates real improvement from chance or expectation effects. | For an improvement that still has to prove itself in everyday work, the method runs it through small learning loops. It connects planning, checking, and standardization into a repeatable learning mode. |
Complexitydifferent | Medium | High | Low |
Timedifferent | 1-4 Wochen | 1-4 Wochen | 1 h bis mehrere Wochen |
Participantsdifferent | 5-20 | 1-6 | 1-8 |
Formatdifferent | Async | Async | Workshop + async |
Outputdifferent | Diary Entries, Longitudinal Patterns, Experience Timeline | Experiment results, Decision log, Learning summary | PDCA Log, Experiment Plan, Learning Outcome, Standard Change |
Tagsno overlap | UX researchTrackingBehavior | ExperimentsGrowthAnalyticsValidation | Continuous improvementLeanExperiments |
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Methods with strong topical overlap with the current selection, not yet in the comparison.
