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Re: new version of S&AS

From: Guus Schreiber <schreiber@swi.psy.uva.nl>
Date: Wed, 19 Mar 2003 13:37:47 +0100
Message-ID: <3E78649B.4040501@swi.psy.uva.nl>
To: "Peter F. Patel-Schneider" <pfps@research.bell-labs.com>
CC: www-webont-wg@w3.org

Peter,
Below are a few detailed comments that came up when reading through 
while revising  Reference.
Guus


1. Sec. 2, sentence about OWL Lite

[[
  This smaller language is a useful language that provides more than
  RDF Schema
]]

make clear that OWL Lite is not just "more" but also "less" than RDF
Schema (e.g. extension of a restriction)


2. Sec. 2.3 axioms

[[
The restriction construct gives the local range of a property, how
many values are permitted, and/or a collection of required values.
]]

"and/or" should be "or"


3. Sec. 4.1 mapping to RDF graphs


3.a. EquivalentClass:

Shouldn't there be a separate mapping rule for EquivalentClass
with a single description?


3.b. Deprecation of datatypes?!

[[
[DatatypeID rdf:type owl:DeprecatedClass]
]]

Do we allow deprecation of datatypes?
Using owl:DeprecatedClass seems wrong, as this is a
subclass of owl:Class and classes and datatypes are constrained to be
disjoint.


3.c. owl:DataRange

In the rule for "oneOf(V1 ... Vn)" the first triple:

   _x rdf:type rdfs:Class

should be replaced by

   _x rdf:type owl:DataRange


4. Sec. 4.2 disallowed vocabulary

owl:DataRange is missing from this list


-- 
A. Th. Schreiber, SWI, University of Amsterdam,
http://www.swi.psy.uva.nl/usr/Schreiber/home.html
Received on Wednesday, 19 March 2003 07:37:51 GMT

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