<tag>

The <tag> element defines a data model annotation. You can use predefined tags to add your own metadata to the data model.

The file PolicyCenter/modules/configuration/config/metadata/tags.lst specifies the list of valid tags that you can use. You cannot add a new tag to this file.

At most one of each tag can exist on a field at one time. Extensions can add, but not override, tags on existing fields.

Attributes of <tag>

The <tag> element contains the following attributes.

Use of the <tag> Subelement in Archiving

One of the common uses for the <tag> subelement is adding the element to a foreign key to assist in resolving certain archive domain graph issues. See Defining a cross-domain tag for details.