eXtensible Markup Language
Developed by World Wide Web Consortium (W3C)
http://www.w3c.org
- Similar to HTML
- XML and HTML are both based on SGML
- XML is influenced by HTML
- HTML documents are not well- formed XML documents
- XHTML is an XML version of HTML
An XML document is a text document with
- markups, or tags.
- start-tag <Server>
- end-tag </Server>
- empty-tag <Context/>
- An element is denoted by
- an empty tag, e. g. <Context/>, or
- a matching pair of start and end tags e.g.
<Server> ... </Server>
- Elements can be nested.
- An XML document consists of one or more elements.
