Extensible Markup Language - meaning and definition. What is Extensible Markup Language
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What (who) is Extensible Markup Language - definition

MARKUP LANGUAGE BY THE W3C FOR ENCODING OF DATA
EXtensible Markup Language; Extensible markup language; Xml; .xml; XML Specification; XML document; XML vocabulary; XML tag set; XML feed; XML feeds; XML parser; DS-XML; Extended markup language; Extended Markup Language; Valid XML document; Xml parser; Web3S; Text/xml; Design Extensible Markup Language; Pull parser; Pull-style parser; Pull parsing; Start-tag; Extensible Markup Language; Extended Reference Concrete Syntax; Xml:lang; XML comment; 3dm; Dynamic XML; Criticism of XML

Extensible Markup Language         
<language, text> (XML) An initiative from the W3C defining an "extremely simple" dialect of SGML suitable for use on the World-Wide Web. http://w3.org/XML/. [Relationship to the XSL forthcoming subset of DSSSL?] (1997-11-20)
XML         
eXtensible Markup Language (Reference: WWW, XML)
XML         
¦ abbreviation Computing Extensible Markup Language.

Wikipedia

XML

Extensible Markup Language (XML) is a markup language and file format for storing, transmitting, and reconstructing arbitrary data. It defines a set of rules for encoding documents in a format that is both human-readable and machine-readable. The World Wide Web Consortium's XML 1.0 Specification of 1998 and several other related specifications—all of them free open standards—define XML.

The design goals of XML emphasize simplicity, generality, and usability across the Internet. It is a textual data format with strong support via Unicode for different human languages. Although the design of XML focuses on documents, the language is widely used for the representation of arbitrary data structures such as those used in web services.

Several schema systems exist to aid in the definition of XML-based languages, while programmers have developed many application programming interfaces (APIs) to aid the processing of XML data.

Examples of use of Extensible Markup Language
1. XML, or extensible markup language, is used to transfer data back and forth between different programs, computers and organizations.
2. These include Adam Bosworth, Google‘s vice president of engineering, known as one of the pioneers of XML, for Extensible Markup Language, which ungirds many modern Web applications.