The elements in the equation domain enable authors to clearly distinguish equations
from other type of content. These markup distinctions can enable formatting distinctions,
numbering of equations, and more. This domain can be used independently of the MathML
The release-management domain elements contain human-authored information about the
changes that have been made to a DITA topic or map. A processor can retrieve this
and use it to assemble documents or topics that contain release note information.
The xNAL domain elements represent a subset of the Extensible
Name and Address Standard. It is used to encode information about
the author or authors of DITA information. The domain can be included
in any DITA document type shell that requires additional metadata
for names and addresses, although the implementations provided by
OASIS only include it in the bookmap document type.