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| Criterion |  Operations PDCA Cycle |  Operations Kaizen Event |  Innovation Design Sprint |  Growth A/B Testing |
|---|---|---|---|---|
Purposedifferent | 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. | 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 the product question is unclear and time pressure is high, the method takes a team from an open idea to a testable solution. It connects problem understanding, decision, and learning in one compact format, lowering the risk of spending a lot of energy on a mere guess. | 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. |
Complexitydifferent | Low | Medium | High | High |
Timedifferent | 1 h bis mehrere Wochen | 0.5-5 Tage | 4-5 Tage | 1-4 Wochen |
Participantsdifferent | 1-8 | 4-10 | 5-8 | 1-6 |
Formatdifferent | Workshop + async | Workshop | Workshop | Async |
Outputdifferent | PDCA Log, Experiment Plan, Learning Outcome, Standard Change | Kaizen Charter, Waste List, Improvement Experiments, Standard Work Update | Prototype, Test Findings, Decision Rationale | Experiment results, Decision log, Learning summary |
Tagsno overlap | Continuous improvementLeanExperiments | LeanContinuous improvementOperations | Design sprintPrototypeValidationInnovation | ExperimentsGrowthAnalyticsValidation |