[closed] hendler-01 literals in parsetype collection from Jim Hendler on 2003-03-27 (www-rdf-comments@w3.org from January to March 2003) (original) (raw)

Dave- I am willing to accept this decision contingent on one thing - I want the issue being postponed to point to this message as well as (or instead of) the original message. The reason is that, as you will see in a minute, I realize that the issue I raised goes beyond the OWL dependency which I originally discussed.

The actual issue: RDF/XML does NOT provide a reasonable syntax for expressing a closed list of values of literals or other datatypes.

That is, supposing I wish to represent that "my scraper found only the following set of names on URI1" I wish to say something like:

<:NameList rdf:parsetype="collection"> rdf:closedListItemfred rdf:closedListItem joe rdf:closedListItem bill </:Namelist>

(note: I have made up the above, it is not intended to be currently correct nor to imply this is the right syntax to use)

If I use current RDF constructs I have no way to produce this as a closed list.

In short, parsetype=collection is not only useful for the OWL oneOf construct, but for any other time when a closed list must be used.

I believe that it would be very useful for RDF/XML to have a means by which such closed lists of datatype elements could be used.

-Jim Hendler AC, Mind Laboratory, University of Maryland

At 22:46 +0000 3/20/03, Dave Beckett wrote:

Jim,

You as AC Member, MIND Laboratory made a last call comment "Comment on rdf:parseType="Collection"" captured in

http://www.w3.org/2001/sw/RDFCore/20030123-issues/#hendler-01

Your email raising the issue: http://lists.w3.org/Archives/Public/www-rdf-comments/2003JanMar/0322.html

The RDF Core WG has resolved

http://lists.w3.org/Archives/Public/w3c-rdfcore-wg/2003Mar/0068.html

to postpone this issue on the grounds that:

• It would require extensive changes to the current syntax specification.
• It is not a critical requirement for the WebOnt WG.
• It would involve considering several different approaches, taking time and consequent changes to the RDF/XML Syntax, Test Cases, Primer working drafts and implementations.

Please reply to this email, copying www-rdf-comments@w3.org indicating whether this decision is acceptable.

Dave

-- Professor James Hendler hendler@cs.umd.edu Director, Semantic Web and Agent Technologies 301-405-2696 Maryland Information and Network Dynamics Lab. 301-405-6707 (Fax) Univ of Maryland, College Park, MD 20742 240-731-3822 (Cell) http://www.cs.umd.edu/users/hendler

Received on Wednesday, 26 March 2003 21:31:53 UTC