目前，制造企业面临诸多挑战。产品生命周期大大缩短，产品结构经常更改，外协加工数量急剧增加，市场更显得纷繁复杂和变化多端，在预定计划的指导下按部就班地指导生产常常显得捉襟见肘、力不从心。因此，企业的各级管理者不仅要关心在一个时间段内的任务安排，而且要关心近 At present, manufacturing companies face many challenges. The product life cycle has been greatly shortened, the product structure has changed frequently, the number of outsourcing processing has increased dramatically, and the market has become more complicated and varied. Under the guidance of a predetermined plan, step-by-step guidance of production often appears to be overstretched and incompetent. Therefore, managers at all levels of the company must not only care about the task schedule within a certain period of time, but also must care about