Recently, ZOZEN held the training of PDCA. The PDCA Cycle or Deming Cycle is a continuous quality improvement model consisting of four repetitive phases and seven steps for continuous improvement and learning: Plan, Do, Check and Act. It both emphasises and demonstrates that improvement programs must start with careful planning, must result in effective action, and must move on again to careful planning in a continuous cycle. Employees gained a lot from the training of PDCA, laying a good foundation for upgrading higher quality products.