ABSTRACT
XML (extensible markup language) is a computer language designed to provide a standard information description framework used for Internet computing. XML and HTML both are derived from the standard generalized markup language (SGML), which was defined in 1986 as an international standard for document markup. XML was completed in early 1998 by the World Wide Web Consortium (W3C). However, the implementation of the XML standard is far from over and depends upon the progress of the entire information technology industry. Also, the XML technology is somehow more complicated than any other computer language because several companion languages must be applied in order to use XML correctly. Two major reasons why XML is needed are discussed here: HTML documents are difficult to process by computers, and different databases need a common data format.
