Plan. Execute. Control. Complete.

What is MES?

  • MES stands for Manufacturing Execution Systems

    • Sometimes referred to as MOM or Manufacturing Operations Management
    • Shop Floor Production System
    • And many others
  • MES enables optimization of production activities from order launch to finished goods

  • MES guides, initiates, responds to and reports on plant activities as they occur

  • This rapid response to changing conditions coupled with a focus on reducing non-value added activities drives effective plant operations and processes

  • MES improves the return on operational assets as well as on-time delivery, inventory turns, gross margin, and cash flow performance

  • MES provides mission critical information about production activities across the enterprise and supply chain via bi-directional communications

What are MES Applications?

(and where does it fit in my plant)

ERP “why” – MES “how to”

  • ERP primarily supports strategic decisions

  • MES supports operational decisions

    • Those who know “how to” make things, always works for those who know “why”
    • But those who know “why,” must rely on people who know “how to” to turn their decisions into reality

ERP is not designed to Reach Shop or Plant Floor

  • No machine that produces a piece per cycle probably will ever communicate to the ERP that it completed the cycle

  • Shop Floor MES production systems and ERP systems operate on different interpretations of “real time.”

  • ERP is focused on the strategic management of the business

  • MES is associated with the punctual execution of the process

  • ERP and MES systems must communicate and act as a seamless whole to allow the manufacturing industry to meet dynamic needs coming from:

    • Customers
    • Regulators
    • Suppliers
    • And even internal staff

MES Benefits

  • Increases operational excellence

  • Improves asset utilization and management of assets

  • Reduces manufacturing cycle times

  • Reduces work in process

  • Reduces paperwork between shifts

  • Reduces lead times

  • Improves product quality

  • Eliminates lost paperwork

  • Empowers plant operations staff

  • MES functionality can be implemented between plants with minor “tweaks” for each specific plant site thus lowering costs across the board

Data Flow – ERP and MES




High Level Production Planning

Product Definition

Process Definition

Human Resources

Inventory Management




Resource Allocation/Status

Operations Scheduling

Production Dispatching

Document Control

Data Collection

Labor Management

WIP Status and Traceability

Quality Management

Performance Analysis

Product Tracking


Process Instructions

Visual Work Instructions

Monitoring & Sensing





Raw Materials

Machine Control

Regulatory Control

Advanced Process Control

Process Sequencing

Human Machine Interface



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