As with /usr/share/sgml/, the Debian layout makes use of a small number of general, top-level directories.
The recommended layout below docbook (or any dtd-based subdirectory) mirrors that of its parent directory, /usr/share/sgml, using directory names that are package-based and version-numbered:
| sgml-dtd-3.1/ |
| sgml-dtd-4.0/ |
| xml-dtd-4.0/ |
| dsssl-stylesheets-1.54/ |
| xsl-stylesheets-1.12/ |
| kde-customization-0.1/ |
| gnome-customization-0.1/ |
| ldp-customization-0.1/ |