<title>Introduction to <application>DocBook <acronym>XML</acronym><acronym>DTD</acronym></application></title>
<para>The <application>DocBook <acronym>XML</acronym><acronym>DTD</acronym></application>-&DocBook-version; package contains document type definitions for
verification of <acronym>XML</acronym> data files against the DocBook rule
set. These are useful for structuring books and software documentation
to a standard allowing you to utilize transformations already written for that standard.</para>