DOM, SAX and Standards - Where Now?
http://www.idealliance.org/proceedings/xml04/abstracts/paper260.html

Reakes, Gareth, Alberto Massari, Lucian Holland and Neil Graham
IDEAlliance

Abstract:

It's been 7 years and three "levels" since the first W3C DOM activity. XML and the way it is used has changed vastly over that time. DOM itself has moved from an API to access and manipulate an in-memory tree with no concept of namespaces, to an end to end XML technology, where parsing, modification of the tree (with the ability to check for validity with a schema as you go) and serialization are all specified.