What is XML Used For?
• XML documents are used to transfer data from one
place to another often over the Internet.
• XML subsets are designed for particular applications.
• One is RSS (Rich Site Summary or Really Simple
Syndication ).  It is used to send breaking news bulletins
from one web site to another.
• A number of fields have their own subsets.  These
include chemistry, mathematics, and  books publishing.
• Most of these subsets are registered with the
W3Consortium and are available for anyone’s use.