A computerized system that formalizes production methods and procedures within the manufacturing environment, providing online tools to execute work orders. The term is generally used to encompasses any manufacturing system not already classified in the enterprise resource planning (ERP) or open control system (OCS) categories. In the broadest definition, MESs include computerized maintenance management systems (CMMSs), laboratory information management systems (LIMSs), shop floor controls, statistical process systems, quality control systems, and specialized applications such as batch reporting and control. See ERP, OCS, CMMS and LIMS.
Management Execution System. By monitoring labour resources, process history and machine usage & failures, a MES will help various features such as preventive maintenance, employee time & attendance, quantity maintenance and operator data.