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<acronym>

<technology> XML stands for eXtensible Markup Language, and is a subset of SGML (Standard Generalised Markup Language) designed for use over the internet, to support new applications.

It was designed specifically to be easy to programme, while remaining formal and concise. XML is defined and controlled by W3C who manage the web standards. The first version of XML was published in 1998. Markup languages are used to describe the information in a document so that programmes can correctly interpret the data.

HTML is the best known of the markup languages, but it is not formal enough for many purposes, and so the W3C is working to replace HTML with XHTML. The move to XML is also being driven by the extensible nature of XML, which means that applications can add their own tags for specific purposes.

XML underlies a number of important standards that are being developed for the web. These include IMS (qv) which defines educational technology interoperability specifications and Dublin Core which is used for cataloguing on the internet.

(28 Feb 2006)

X-linked locus, xlisp, xls, XML < Prev | Next > XML schema, xml schema definition

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