Manufacturing Execution System
See MES. Manufacturing Execution System is the full name for the software category that governs real-time shop-floor production execution, distinguishing it from enterprise planning systems (ERP) and lifecycle governance systems (PLM).
Why it matters
The full-name distinction matters in procurement and architecture conversations where MES is confused with ERP production modules (SAP PP, Oracle WIP) or PLM manufacturing modules. MES systems (Siemens Opcenter, Rockwell Plex, Dassault DELMIA Apriso, Tulip) are purpose-built for real-time shop-floor integration in a way that ERP production modules typically are not.
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Cite this definition
Finocchiaro, Michael. “Manufacturing Execution System.” DemystifyingPLM PLM Glossary, 2026, https://www.demystifyingplm.com/glossary/manufacturing-execution-system