XML Schema Working Drafts Released

The W3C XML Activity has released three XML schema Working Drafts. XML schemas provide a superset of the capabilities found in XML 1.0 document type definitions (DTDs). XML Schema Part 0: Primer is an introduction. XML Schema Part 1: Structures specifies the XML Schema definition language, which offers facilities for describing the structure and constraining the contents of XML 1.0 documents. XML Schema Part 2: Datatypes specifies a robust, extensible datatype system for XML. This is an interim release in anticipation of a request for Candidate Recommendation status in the near future, provided now to give timely notice of important syntax changes.