Also, there are just a few tools available, and they are immature. DTDs gives definition to different types of documents. For example, a company's product order form is a different document than a legal document. Parser A piece of code that takes an XML document, reads and interprets it and shows it as a navigable object to the application. How the document is marked up so it can be displayed.
Tags format the data in the document.
One key issue for us is the need to learn XML, understand tagging and get agreement on tagging. If everyone tags documents differently, we can't reuse them. Inc. All rights reserved. Reproduction in whole or in part in any form or medium without express written permission of Computerworld, Inc. is prohibited.