The author also gives a design of new Quality Control Management System, Implementation and Development Strategy for YCFF to improve product quality after performing positional analysis for existing products with life period and Boston matrix theory.

• 应用产品生命周期对现有产品进行定位分析后，结合企业现状，设计出新的质量管理系统并有效实施，全面提高产品质量。