制造执行系统（简称MES，亦为生产管理系统）MES系统主要负责车间生产管理和调度，用于跟踪和记录从原材料到成品的生产转换。
1、概念：
MES（英文全称：Manufacturing Execution System）制造执行系统，是面向车间生产的管理系统。
2、定义：
业界对于MES的定义是：在产品从工单发出到成品完工的过程中，制造执行系统起到传递信息以优化生产活动的作用。
3、作用：
在生产过程中，借助实时精确的信息、MES引导、发起、响应，报告生产活动。作出快速的响应以应对变化, 减少无附加价值的生产活动，提高操作及流程的效率。MES提升投资回报、净利润水平、改善现金流和库存周转速度、保证按时出货。MES保证了整个企业内部及供应商间生产活动关键任务信息的双向流动。
通常来讲，MES功能组件包括：资源管理、工序管理、单元管理、生产跟踪、性能分析、文档管理、人力资源管理、设备维护管理、过程管理、质量管理和数据采集。
MES是位于上层计划管理系统与底层工业控制之间、 面向车间层的管理信息系统。它为操作人员、管理人员提供计划的执行、跟踪以及所有资源（人、设备、物料、客户需求等）的当前状态信息。
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本文为科普类文章，不作为选择建议或投资建议。
翻译：
What is an MES system? What is the concept of MES? What is the definition of MES? What is the role of MES?
1. Concept:
MES (English full name: Manufacturing Execution System) manufacturing execution system is a management system for workshop production.
2. Definition:
The industry defines MES as: during the process of product issuance from the work order to the finished product, the manufacturing execution system plays a role in transmitting information to optimize production activities.
3. Function:
In the production process, with real-time accurate information, MES guide, initiate, respond, report production activities. Respond quickly to changes, reduce unadded value activities, and improve operational and process efficiency. MES improves return on investment, net profit level, improves cash flow and inventory turnover speed, and ensures on-time shipments. MES ensures the two-way flow of mission-critical information of production activities within the entire enterprise and between suppliers.
Generally speaking, MES functional components include: resource management, process management, unit management, production tracking, performance analysis, document management, human resource management, equipment maintenance management, process management, quality management and data collection.
MES is a management information system that is located between the upper level plan management system and the lower level industrial control, and is oriented to the workshop level. It provides operators and managers with plan execution, tracking, and information on the current status of all resources (people, equipment, materials, customer requirements, etc.).
