Server components

Database

The MES database is a centralized repository for the MES data.

The Database component also includes the OS Group SID utility, which is used to import Windows Active Directory group SIDs into the MES database.

To optimize performance on a system that will also be running BI Gateway, the MES database should be installed on a separate server from the BI Gateway database.

Middleware

The MES middleware:

• Enables communication between the client components and the MES database

• Allows the node to support executing archive, purge, and restore (APR) jobs for MES database maintenance

• Changes shifts

• Generates and changes the status of quality samples

• Cleans up stale sessions

The Middleware component also includes:

• The MES curation service which enables communication between the MES database and AVEVA Events to CONNECT

• The Service Monitor utility, which is used to start, stop, and restart the MES Middleware Host and Curator Host services from the Service Monitor icon in the Windows system tray

• The MES Web API, which can be used to develop custom applications

• The MES Clear Parameter Cache utility, which is used to clear the middleware stored procedure parameter cache

• A License Client API for accessing the License Server

MES Web Portal

MES Web Portal is a web application that provides web-based access to MES.