Metadata elements include information that is located within
the <topicmeta> element (in maps) or <prolog> element (in topics),
as well as indexing elements that can be placed in additional locations
within topic content.
Prolog (metadata) elements
The prolog elements represent the metadata associated with a document. Most of the metadata in a topic prolog can also be authored in a DITA map, in the map's <topicmeta> element.
Indexing group elements
The indexing domain provides elements for use with indexing. The elements allow authors to define "See" and "See also" references, and to override the default sort order for a term.
Delayed conref resolution elements
The delayed conref resolution domain provides several elements for use when using DITA in situations that enable delayed or delivery time resolution of conref. The elements allow users to resolve some conref values statically, while delaying others for later resolution.