Definition: XML (eXtensible Markup Language): A widely used system for defining data formats. XML provides a very rich system to define complex documents and data structures such as invoices, molecular data, news feeds, glossaries, inventory descriptions, real estate properties, etc. As long as a programmer has the XML definition for a collection of data (often called a "schema") then they can create a program to reliably process any data formatted according to those rules. From Matisse
"XML (eXtensible Markup Language)"
By Juergen Haas, About.com
Suggested Reading
Explore Linux
Must Reads
About.com Special Features
Build Your Own Website
Step-by-step advice on how to do everything from choosing a Web host to promoting your content. More >
Connect Your Home Computers
Easy ways to connect two computers for networking purposes. More >
©2009 About.com, a part of The New York Times Company.
All rights reserved.