It has now been adopted as a key technology by Adobe, IBM, Microsoft, Netscape, Oracle, Sun and most major vendors. So you can create and edit XML documents using simple text editors, which are found on every computer. SGML is very complicated, because it provides many mechanisms to support different syntaxes, and because it was developed to solve the problems of producing and archiving very large sets of interlinked, complex, technical documents. XML has been designed to be easy to implement.
Lets have a look at a simple example.
XML just provides the syntax to allow the structure to be represented and to give names and attributes. However, like other layered technologies such as coaxial cable, ethernet, IP or TCP, it can be used to build very complex and powerful systems. 1999 Rick Jelliffe. Please feel free to publish this in any way you like, but try to update it to the most recent version, and keep my name on it.