Technologies built on top of XML

A notation for trees is not enough! The real power of XML is generic languages and tools supporting: Namespaces. These are needed to avoid clashes when a document uses several sub-languages. Enhanced linking between documents. That is, a generalization of HTML anchors and links. Addressing for parts of documents. It is not enough that only the author can place anchors. Transformation. That is, conversion from one document class to another. Querying. That is, the ability to extract information from documents.

Section 3-1: November, 2001.