Developer Documentation Library > Data Model > Extending the UNICOM Intelligence Data Model > Creating a Metadata Source Component (MDSC) > Populating the MDM Document > Setting up custom properties
 
Setting up custom properties
You can set up MDM custom properties on all of the main object types (Document, Variable, Grid, Element, and so on) to store information that is not directly supported by the MDM. For a list of the custom properties that are already in use, see Custom properties in use in UNICOM Intelligence products. However, you can define additional custom properties.
You can also set up DataSourceProperties to store DataSource-specific custom properties.
See also
Setting up the Document
Setting up basic questions
Setting up elements
Setting up helper fields
Setting up shared category lists
Setting up complex questions
Setting up the routing
Versions
Using the Alias Map component
Visual C++ examples
Populating the MDM Document