DITA processing is affected by a number of factors, including
attributes that indicate the set of vocabulary and constraint modules on which a DITA
document depends; navigation; linking; content reuse (using direct or indirect addressing);
conditional processing; branch filtering; chunking; and more. In addition, translation of
DITA content is expedited through the use of the @dir,
@translate, and @xml:lang attributes, and the
<index-sort-as> element.