Creating a Metadata Source Component (MDSC)
A data source component (DSC) can be a case data source component (CDSC), a metadata source component (MDSC), or both. This section provides information about writing a metadata source component (MDSC) to make proprietary metadata available through the UNICOM Intelligence Data Model.
Creating a read-enabled MDSC involves:
▪Creating a COM class to implement the IMetadataLoad interface of the
MDSC interface component.
▪Writing code to populate the MDM Document with information describing the proprietary data.
▪Registering the new MDSC so that it can be recognized by the UNICOM Intelligence Data Model.
This section provides information about creating a read-enabled MDSC only. Creating an MDSC that can write metadata or convert metadata involves similar steps, except that the COM class needs to implement the IMetadataSave or IMetadataConvert interfaces and you need to write code to create and save or convert the metadata.
You can write an MDSC whose underlying proprietary data format is a database. The connection string is then a connection string to the database. The registration settings for the DSC specify whether its underlying format is a file, a directory, or a database.
This section assumes that you understand how the UNICOM Intelligence Data Model works. If you are new to the UNICOM Intelligence Data Model, see
Before you create a DSC.
See also