The Extensible Markup Language (XML) is a general-purpose markup language.[1] It is classified as an extensible language because it allows its users to define their own tags.
Its primary purpose is to facilitate the sharing of structured data across different information systems, particularly via the Internet.[2] Thus its usage encompasses both the document encoding arena and the data serialization arena; in the latter context it competes...
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http://en.wikipedia.org/wiki/XML
8/30/2007
