XML(redirected from W3C XML Schema)
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An international standard metalanguage for creating markup languages that structure digital information in a way that allows for the exchange, display, and storage of data independent of proprietary operating systems and hardware devices.
[Ex(tensible) M(arkup) L(anguage).]
(Computer Science) extensible markup language: a computer language used in text formatting
eXtensible Markup Language: a simplified version of SGML that can be used, esp. on the Web, to create a tagging scheme that allows elements of a document to be marked according to their content rather than their format.