XML: A set of Extensible Markup Languages

• Since mid 1996 W3C SGML (now renamed XML) Working Group had been developing a system for defining, validating, and sharing document formats on the Web.

• W3C issued XML 1.0 as a Recommendation on the 10th of February 1998.

• It is the first in a series of standards.

  • Document Object Model Level 1 (DOM);

  • Mathematical Markup Language (MathML) 1.01;

  • Associating Style Sheets with XML documents;

  • Resource Description Framework (RDF);

  • Synchronised Multimedia Integration Language (SMIL) 1.0;

  • Namespaces in XML

• Much work remains to be done

  • XML Schema (description of structures and data types);

  • XHTML: extensible HTML-A Reformulation of HTML 4.0 in XML 1.0;

  • XPath: addressing parts of an XML document;

  • XSLT: transforming XML documents for use with XSL;

  • XSL: extensible stylesheet language;

  • SVG: scalable vector graphics;

  • XLink: XML Linking Language;

  • XPointer: XML Pointer Language;

  • XML Schema: define and describe a class of XML documents.