1. flow model, APS is mainly a sequential optimization problem.
2. Discrete model, APS mainly solves the optimal scheduling problem of multi-process and multi-resources.
3. Process and discrete mixed model. APS solves the optimization problem of sequence and scheduling simultaneously.
4. Project management model, APS mainly solves the problem of minimizing critical path and cost time. APS is a real-time, optimized, effective and accurate plan. AP should choose carefully. Recently, many factories have abandoned separate APS and adopted APS/MES lean manufacturing management system, because there are not only APS scheduling and hardware support, but also MES manufacturing execution system to promote production and guide industrial processes effectively and agilely. Complement ERP, CRM and SCM, realize the construction of "transparent factory", promote the optimization of production, management and organizational structure, promote the realization of JIT production mode, and build an intelligent factory with industrialization and information integration. This is the trend of manufacturing industry. You can download the related materials for free by registered members of Zhongyuan Science and Technology official website.