This page summarizes the relationships among specifications, whether they are finished standards or drafts. Below, each title links to the most recent version of a document. For related introductory information, see: XML Essentials.
W3C Recommendations have been reviewed by W3C Members, by software developers, and by other W3C groups and interested parties, and are endorsed by the Director as Web Standards. Learn more about the W3C Recommendation Track.
Group Notes are not standards and do not have the same level of W3C endorsement.
This document is a report of the results of a meeting of a group of W3C Members involved in XML and RDF to advance the general understanding of a unified approach to the expression of Web data models. This document is one response to the Web data architecture discussed in "Web Architecture: Describing and Exchanging Data".
This document provides a detailed comparison of SGML (ISO 8879)
Comparison of SGML and XML