<metadata>The <metadata> section of the <prolog> contains
information about a topic such as audience and product information. Metadata can be used by
computational processes to select particular topics or to prepare search indexes or to
customize navigation. Elements inside of <metadata> provide information
about the content and subject of a topic; <prolog> elements outside of
<metadata> provide lifecycle information for the content unit (such
as the author or copyright), which are unrelated to the subject.
Category: Prolog (metadata) elements