- From: Jeremy Carroll <jjc@hplb.hpl.hp.com>
- Date: Tue, 21 Dec 2004 12:02:00 +0000
- To: Jeff Pan <pan@cs.man.ac.uk>
- Cc: SWBPD <public-swbp-wg@w3.org>
Looks OK to me, let's wait until Evan has reviewed and see whether he agrees or not. Jeremy Jeff Pan wrote: > Jeremy, > > Thanks for your comments. > > >>concerning >>http://www.w3.org/2001/sw/BestPractices/XSCH/xsch-sw-20041213/#sec-related >> >>Hi Jeff, >> >>I have three comments about section 1 for your consideration: >> >>a) could section 1.3 be entitled "Datatypes in OWL DL" > > > It could. > > >>b) it wasn't obvious to me the relevance of 1.4, after some thought I >>realised that this showed that user defined datatypes do not undermine >>the computational principles of OWL DL, and are suitable for use in >>them. I suggest a further introductory paragraph reminding the reader >>that OWL DL is built on DL theory and that extending OWL DL to use >>user-defined datatypes does depend on further DL theory than that >>presented in the OWL Semantics > > >>c) even so, 1.4 felt a little out of place (relevant but too heavy too >>early), could it be moved to an appendix? e.g. add additional paragraph >>to 1.3 above current last para, explaining that other theoretical work >>is required, and that the appendix gives this work. > > > A solution to extend OWL DL to support user-defined datatypes should cover > > 1) a standard way of referring to an XML Schema user defined simple > type with a URI reference, and > > 2) a formal framework of combining SHOIN with user defined datatypes so that the combined language is still decidable. > > Section 1.4 is an attempt to address 2) and can be extended in later versions. I propose to extend it in the following way: > > 1. At the end of Section 1.3, explain further theoretical work is required. > 2. Add a sub-section at the end of Section 2 to provide a high level description of 2); therefore, Section 2 provides a complete solution for the user defined datatypes problem. > 3. Add an appendix to provide some technical details of 2). > 4. Remove Section 1.4. > > Greetings, > Jeff > > -- > Dr. Jeff Z. Pan ( http://DL-Web.man.ac.uk/ ) > School of Computer Science, The University of Manchester > > > > >>Jeremy >> >> >> >> >> >> >> > >
Received on Tuesday, 21 December 2004 12:02:14 UTC