- From: Chris Welty <cawelty@gmail.com>
- Date: Mon, 26 Jan 2009 10:41:52 -0500
- To: Bijan Parsia <bparsia@cs.man.ac.uk>
- CC: Bijan Parsia <bparsia@cs.manchester.ac.uk>, Sandro Hawke <sandro@w3.org>, Dave Reynolds <der@hplb.hpl.hp.com>, "Public-Rif-Wg (E-mail)" <public-rif-wg@w3.org>
I'm not current on the OWL spec so I don't know exactly what you mean by "support" here. RIF does allow for user-defined datatypes. The RIF BLD conformance clause paramaterizes RIF conformance wrt a set of supported datatypes, however RIF does not provide any particular mechanism for defining them, I guess we've been assuming users would use xsd for that. -Chris Bijan Parsia wrote: > Another key point. > > AFAICT, RIF does not support user defined datatypes. OWL does. This is > one reason we are more sanguine about adding the additional derived > types of xs:string. > > Thus, unless you want to add user defined datatypes (or I'm mistaken > about that!) it is futile. > > Cheers, > Bijan. > -- Dr. Christopher A. Welty IBM Watson Research Center +1.914.784.7055 19 Skyline Dr. cawelty@gmail.com Hawthorne, NY 10532 http://www.research.ibm.com/people/w/welty
Received on Monday, 26 January 2009 15:42:32 UTC