capabilities of constraints from Peter F. Patel-Schneider on 2014-12-04 (public-data-shapes-wg@w3.org from December 2014)

From: Peter F. Patel-Schneider <pfpschneider@gmail.com>
Date: Thu, 04 Dec 2014 07:37:37 -0800
To: RDF Data Shapes Working Group <public-data-shapes-wg@w3.org>
Message-ID: <54807FC1.20705@gmail.com>

There appears to be some confusion in the working group on how constraints can 
work.  Just because a shape associated with a class can only do certain 
things, this does not mean that a constraint is so limited.

For example, the two OWL constraints in S4 
(https://www.w3.org/2014/data-shapes/wiki/User_Stories#S4:_Issue_repository) 
show how to have OWL constraints provide two different "shapes" depending on 
some property value of instances of a class.  SPIN can do similar things, as 
also shown for S4.

peter

Received on Thursday, 4 December 2014 15:38:07 UTC