Simple API for XML (SAX)

SAX (Simple API for XML) like DOM (Document Object Model) gives access to the information stored in XML documents using any programming language (and a parser for that language). However, both of them take very different approaches to giving you access to your information: DOM creates a tree of nodes (based on the structure and information in your XML document) and you can access your information by interacting with this tree of nodes.

http://www.xml.org/xml/resources_focus_sax.shtml