Member Submission - Note

Date: Aug. 10, 1998
Link: http://www.w3.org/TR/NOTE-dcd
Source Author or Organization: IBM, Microsoft, Textuality

This document proposes a structural schema facility, Document Content Description (DCD), for specifying rules covering the structure and content of XML documents. The DCD proposal incorporates a subset of the XML-Data Submission [XML-Data] and expresses it in a way which is consistent with the ongoing W3C RDF (Resource Description Framework) [RDF] effort; in particular, DCD is an RDF vocabulary. DCD is intended to define document constraints in an XML syntax; these constraints may be used in the same fashion as traditional XML DTDs. DCD also provides additional properties, such as basic datatypes.

The Document Content Description facility for XML (abbreviated DCD) is an RDF vocabulary designed for describing constraints to be applied to the structure and content of XML documents. The abbreviation "DCD" is used to describe both the general facility described in this document and individual schema instances that conform to it.