Extensible Markup Language (XML)

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Document-description (formatting) language standardized in 1998, and regulated by the World Wide Web Consortium (W3C). A file format-independent language, it is designed primarily to enable different types of computers to exchange text, data, and graphics by allowing files to be shared, stored and accessed under different application programs and operating-systems. XML is a simpler subset of ISO Standard Generalized Markup Language (SGML), similar to but much more capable than Hypertext Markup Language (HTML). It is also a 'metalanguage' because it can be used to develop other markup languages, and to include 'tags' (pointers) which provide additional information about data held in a document.
XML is applicable to virtually every aspect of the internet, including electronic commerce, supply chain integration, content management, application integration, etc. See also Acrobat.

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