XML was created by the World Wide Web Consortium (W3C) who now promote and control the standard. The W3C also promotes and develops a number of other interoperable technologies. The latest XML standard, along with lots of useful information and tools, can be obtained from the WC3 Web site (www.w3.org).
XML is a set of rules for designing text formats that describe the structure of your data. XML is not a programming language, so it is therefore easy for non-programmers to learn and use. In devising XML, the originators had a set of design goals which were as follows:
XML should be straightforward to use over the Internet.
XML should support a wide variety of applications.
XML should be compatible with the Standard Generalized Markup ...