DTD for RDF? How is that possible?

[Roger L. Costello]

I recall seeing a posting a few months back where someone posted a DTD
for RDF.  Upon reflection I find this puzzling.  How could you possibly
create a DTD for RDF?  By definition, the child elements in
rdf:Description are arbitrary:

<!ELEMENT rdf:RDF (rdf:Description)*>
<!ELEMENT rdf:Description (???)*>

It is my understanding that RDF documents can only be "well-formed". 
There is no such thing as a "valid" RDF document.  Correct?  /Roger


xml-dev: A list for W3C XML Developers. To post, mailto:xml-dev at ic.ac.uk
Archived as: http://www.lists.ic.ac.uk/hypermail/xml-dev/ and on CD-ROM/ISBN 981-02-3594-1
To (un)subscribe, mailto:majordomo at ic.ac.uk the following message;
(un)subscribe xml-dev
To subscribe to the digests, mailto:majordomo at ic.ac.uk the following message;
subscribe xml-dev-digest
List coordinator, Henry Rzepa (mailto:rzepa at ic.ac.uk)