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| Criterion |  UX Research Surveys |  Operations Kaizen Event |  Growth A/B Testing |  Operations PDCA Cycle |
|---|---|---|---|---|
Purposedifferent | When a topic needs to be validated broadly and many people can answer the same question, surveys gather structured feedback in a scalable form. Answers become comparable and segmentable instead of remaining merely anecdotal. | For a tightly scoped process segment with noticeable waste, the method bundles shared energy for change. It suits situations that call for fast learning loops and visible adjustments. | 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 | Medium | High | Low |
Timedifferent | 3-14 Tage | 0.5-5 Tage | 1-4 Wochen | 1 h bis mehrere Wochen |
Participantsdifferent | 50+ | 4-10 | 1-6 | 1-8 |
Formatdifferent | Async | Workshop | Async | Workshop + async |
Outputdifferent | Survey Results, Charts, Segment Insights | Kaizen Charter, Waste List, Improvement Experiments, Standard Work Update | Experiment results, Decision log, Learning summary | PDCA Log, Experiment Plan, Learning Outcome, Standard Change |
Tagsno overlap | QuantitativeResearchValidation | LeanContinuous improvementOperations | ExperimentsGrowthAnalyticsValidation | Continuous improvementLeanExperiments |