What does the Unidata LDM do?

The Unidata Local Data Manager (LDM) is a collection of cooperating programs that select, capture, manage, and distribute meteorological data products.
The system is designed for event-driven data distribution, and is currently used in the Unidata Internet Data Distribution (IDD) project.
The LDM system includes network client and server programs and their shared protocols.
An important characteristic of the LDM is its support for flexible and site-specific configuration.