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MOM and MES: What’s the difference?

31 May 2024

Mike Bradford explains the differences between Manufacturing Operations Management and Manufacturing Execution System software and why these differences are important to know.

Manufacturing Operations Management (MOM) and Manufacturing Execution Systems (MES) software both have important toles to play in the workflow of manufacturing companies but there are still many within the sector who confuse the two. These terms are often used interchangeably, but they do not mean the same thing. 

MES refers to guiding the operator in production tasks to be done, collecting genealogy data as products are produced, and collecting production data in real time. 

This data makes it possible to optimse production activities from product creation to final production. 

On the other hand, MOM has a broader scope, providing s a comprehensive outlook on the entire manufacturing operation. It integrates various elements such as quality, logistics, warehouse and materials, time and labour, and maintenance into the overall process. 

MES can be considered as a component of MOM. Think about gaining visibility and control over shop floor execution. Its primary purpose is to monitor, manage, and optimise the day-to-day processes inside the facility using data. Precision and efficiency are key benefits of MES, as it provides real-time data and guides the operator in the production tasks, allowing for a smooth flow of operations at the shop floor level. 

The benefits of MES
MES offers several key benefits to the manufacturing environment:

• Real-time data collection: MES enables real-time data collection and analysis, enhancing decision-making and operational efficiency. 

• Standardisation of production processes: MES helps to standardise production processes within a facility, leading to improved product consistency and overall efficiency. 

• Integration with ERP systems: MES should seamlessly integrate with Enterprise Resource Planning (ERP) systems, facilitating smooth information flow across different levels of the organisation. 

• Reduced operational costs: By streamlining processes, eliminating waste and facilitating lean programs, MES can help reduce operational costs.

In addition to the advantages provided by MES, MOM offers several key benefits that contribute to the overall efficiency and effectiveness of manufacturing operations. 

• Improved decision making: With the integration of real-time data, MOM aids in informed and accurate decision-making, reducing errors and increasing operational efficiency. 

• Enhanced quality control: MOM systems integrate quality control in the manufacturing process, ensuring consistent product quality and reducing waste. 

• Optimised resource utilisation: By providing a comprehensive view of all operations, MOM allows for optimal allocation of resources, reducing costs. 

• Enhanced compliance: MOM systems can help ensure compliance with industry standards and regulations, reducing the risk of non-compliance penalties.

Understanding the benefits of both MOM and MES is important for businesses looking to optimise their manufacturing operations. MOM plays a role in managing all aspects of manufacturing operations, while MES focuses on the granular control needed at the shop floor level. Together they provide the tools necessary for businesses to optimise manufacturing processes and to help gain a competitive edge.

Mike Bradford is Strategic Business Development Director at DELMIA.


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