What Exactly Is XML?

To get a good idea of what XML is, you also need to know what XML is not. I’ll cover some of those misconceptions in the following section, but for now, let’s cover what XML is—a language that was designed to facilitate the exchange of information.


One of the best sources for XML information is at the World Wide Web Consortium (W3C) web site (http://www.w3.org). The W3C publishes the XML standards as well as most (if not all) of the World Wide Web-related standards.

XML Applications

XML and the related technologies can be applied to a number of applications. Before I actually start discussing some of the characteristics of XML, let’s take a moment and look at some of the important applications of XML. Currently, ...

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