Design and implementation of software architecture for extensible manufacturing execution system

Aiming at the extensibility of Manufacturing Execution System (MES), the concept of Extensible MES (EMES) was put forward on the basis of analyzing the extensible requirements and characteristics of MES. The extensible software architecture based on factory method pattern was presented, and the detail implementation technologies of software architecture and instantiation process of production business were discussed. By taking the extensible requirements of job transfer management among multiple workshops as an example, the specific extensible logic and method were illustrated. On the background of typical discrete manufacturing workshop of aviation manufacturing industry, an EMES for aviation industry was established, which could improve the development and maintenance efficiency of MES effectively and shorten the cycle of development, implementation and upgrade significantly. Practical application results showed that the EMES had good extensibility and maintainability, which provided important referential value for improving the extensibility and maintainability of software system.