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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

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

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

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,
Received on Wednesday, 19 March 2003 07:37:51 UTC

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