MOM vs. MES: What’s the Difference?

MOM stands for Manufacturing Operations Management. In the strictest sense, MOM refers to the third layer of the ISA-95, a set of standards designed by the International Society of Automation used to make accurate comparisons of production levels at different locations. This new set of standards was introduced around 2005 to more accurately describe what was possible with emerging digital solutions.  

MES, on the other hand, stands for Manufacturing Execution System. In the framework of the ISA-95, MES is considered a subset of MOM, referring to one of the many inputs that are required to run a well-managed automated facility.