MES provides the information needed to optimize production activities from order placement to product completion; directs, initiates, responds to and records shop floor production activities using timely and accurate data, enabling rapid response to changes in production conditions, thereby reducing non-value-added activities and increasing efficiency. MES provides key basic information about production activities between the enterprise and the supply chain through a two-way information interaction. (by business)

The execution layer between the planning layer (ERP) and the control layer (PCS) of a manufacturing enterprise is the bridge and link between the enterprise resource planning system and the equipment control system, and is the key system for manufacturing enterprises to achieve agility and global optimization. (By Architecture)

The role of manufacturing (production) process management is to transform the enterprise's target values of quality, output, cost and other related comprehensive production indicators into operation plans, operation standards and process standards for the manufacturing process, so as to generate appropriate control instructions and production instructions, drive the equipment control system to make the production line complete the right action at the right time and produce qualified products, so that the actual production indicators are within the within the target value of the integrated production index. (by index)