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draft public comment for OWL last call from RIF

From: Chris Welty <cawelty@gmail.com>
Date: Wed, 21 Jan 2009 22:19:37 -0500
Message-ID: <4977E5C9.4010103@gmail.com>
To: "Public-Rif-Wg (E-mail)" <public-rif-wg@w3.org>


[RIFWG - comments please.  This is the message I propose to send to the OWL 
public comments list from RIF.  Should I get more technical, or is this sufficient.]

The RIF WG's primary mission is interchange, and interoperability between RIF 
and OWL is both an internal goal as well as, we believe, a goal of the semantic 
web community in general.  We believe that the semantic web standards should 
settle on a common set of datatypes and a common interpretation of them.

We have reviewed the OWL choices for the XML schema datatypes and have found 
them acceptable for RIF with one exception:  we cannot work with the 
redefinition of xsd numeric datatypes with overlapping (non-disjoint) value 
spaces.  While we all agreed the idea of e.g. "1.0"^^xsd:double and 
"1"^^xsd:decimal being the same entity makes sense, RIF adds a set of builtin 
functions and predicates to its chosen xsd's and these are based on a wide 
implementation base that assume disjointness of xsd value spaces.  Breaking 
these implementations would negatively impact interchange and significantly 
raise the "barrier to entry".


-The RIF WG

-- 
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 Thursday, 22 January 2009 03:20:16 GMT

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