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Attributes of a scaled-down MES
D-Factory is based upon the standard MES definition, but will have fewer components.
Following is a list of major components that must be addressed, and some suggested approaches:

Environment / Deployment
  dotConfiguration manager / wizard
    dotDeployable on x86 systems:
    dotWindows 2000, Windows XP
    dotLinux (RedHat, Mandrake)
dotJAVA-based, access with web-browser
   (e.g., Netscape, Opera, etc)

dotOpen Database Base Connectivity (ODBC),

dotLinux (RedHat, Mandrake)
dotSQL services:
    dotGPL -- msql, Mysql or postgres
    dotnon-GPL -- Oracle, MS sqlserver

Product Definition
  dotResource definition
dotSupplier / Vendor definition
dotShipping destination
dotITEM control, with versioning
dotBOM control, with versioning
dotInventory tracking
dotCreate Demand / Workorder
    Two simple interfaces:
    1. Retrieve Work Orders thru scheduler interface
    2. Single production order (with defaults)

  dotWork Instructions
    Use simple templates to define and play:
    dotJPG, GIF, TIFF, PNG drawings
    dotWAV, AU audio clips
    dotMPG, AVI, ASF video clips
dotData Collection (e.g. on-line bar code driven traveler)
dotNC control with versioning (keep it very simple!)
dotAPI types:
    dotclient control (e.g. operating system)
    dotserver control (e.g. SCADA)
    dotdata interchange
dotAlarming / Alerts
dotWorkflow control
dotEmployee / labor resources

  dotReporting / Documents
   (via predefined templates)

dotEquipment status
dotMaterial Consumption
dotWork-In-Process (WIP) tracking
   (by part, assembly or sub-assembly)

Future Additions
  dotConditional Routing
dotintegrated Statistical Process Control (SPC)
dotshare production data in real time with other locations

Follow these links for more information on major MES components:

MES Standard Functional Diagram

MES minimal Functional Diagram