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draft response for LC comment 20 JDB1

From: Peter F. Patel-Schneider <pfps@research.bell-labs.com>
Date: Tue, 03 Mar 2009 20:28:41 -0500 (EST)
Message-Id: <20090303.202841.12034087.pfps@research.bell-labs.com>
To: public-owl-wg@w3.org
[Draft Response for LC Comment 20:] JDB1

Dear Jos,

Thank you for your message
on the OWL 2 Web Ontology Language last call drafts.
You are correct that OWL 2 RL does not need the intersection of
datatypes to be empty or infinite.  Accordingly the datatypes in OWL 2
RL have been adjusted to include all the OWL datatypes that are
restrictions of xsd:decimal and xsd:string and also xsd:boolean.

In response to another comment 
on the difficulty of implementing datatypes in rules systems, 
owl:real and owl:rational have been removed from OWL 2 RL.
This possibility was mentioned in Feature At Risk #2.

The diffs for these changes can be found at

Implementation difficulties have resulted in xsd:float and xsd:double 
remaining out of OWL 2 RL.  If these difficulties can be overcome the
two datatypes may be included in OWL 2 RL.  If changes occurs the
group will notify you.

Please acknowledge receipt of this email to
<mailto:public-owl-comments@w3.org> (replying to this email should
suffice). In your acknowledgment please let us know whether or not you
are satisfied with the working group's response to your comment. 

Peter F. Patel-Schneider
on behalf of the W3C OWL Working Group 
Received on Wednesday, 4 March 2009 01:28:30 UTC

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