Eight Modules:
Core: org.w3c.dom *
HTML: org.w3c.dom.html
Views: org.w3c.dom.views
StyleSheets: org.w3c.dom.stylesheets
CSS: org.w3c.dom.css
Events: org.w3c.dom.events *
Traversal: org.w3c.dom.traversal *
Range: org.w3c.dom.range
Only the core and traversal modules really apply to XML. The other six are for HTML.
* indicates Xerces support