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minor bug with S&AS 4.2

From: Jeremy Carroll <jjc@hpl.hp.com>
Date: Fri, 9 Jan 2004 12:16:37 +0100
To: www-webont-wg@w3.org
Cc: pfps@research.bell-labs.com
Message-Id: <200401091216.37217.jjc@hpl.hp.com>


I hope it is in order to cc: peter.

I have been looking at S&AS and found a small problem.

While I do not believe this would cause actual interoperability problems, it 
might be better if we could address it before Rec.

I am open to being told I am being too picky.

Section 4.2 fails to mention that built-in annotation properties and ontology 
properties can only be used as such.

It appears to be the intent of 
[[
There are several built-in annotation properties in OWL, namely 
owl:versionInfo, rdfs:label, rdfs:comment, rdfs:seeAlso, and 
rdfs:isDefinedBy. In keeping with their definition in RDF, rdfs:label and 
rdfs:comment can only be used with data literals. 

There are also several built-in ontology properties; they are owl:imports, 
owl:priorVersion, owl:backwardCompatibleWith, and owl:incompatibleWith. 
Ontology annotations that use owl:imports have the extra effect of importing 
the target ontology. 
]]
in section 2.1 but I suspect there is still a (perverse?) reading which notes 
that it is not prohbited to use such things as e.g. an owl:ObjectProperty. 
(If that is the intended reading, I apologise).

I wonder whether the text in 4.2 might benefit from 

a) making the text in 2.1 linkable and highlighting "built-in annotation 
properties" and "built-in ontology properties" (i.e. defining the terms)

b) modifying the defn of separated vocabulary poitn 3 from
[[
the ontologies in O only use the class-only vocabulary as class IDs; only use 
the datatype-only vocabulary as datatype IDs; only use rdfs:Literal in data 
ranges; only use the property-only vocabulary as datavaluedProperty IDs, 
individualvaluedProperty IDs, or annotationProperty IDs; and do not mention 
any disallowed vocabulary.
]]
to
[[
the ontologies in O only use the class-only vocabulary as class IDs; only use 
the datatype-only vocabulary as datatype IDs; only use rdfs:Literal in data 
ranges;
only use the property-only vocabulary as datavaluedProperty IDs, 
individualvaluedProperty IDs,  annotationProperty IDs 
***
or ontologyPropertyIDs;
only use the built-in annotation properties as  annotationProperty IDs;
only use the built-in ontology properties as  ontologyProperty IDs;
 ***
and do not mention any disallowed vocabulary.
]]

Combining with my earlier proposal [1] in response to Holger we would get

[[
the ontologies in O,
*** 
except as the values of annotations, 
***
only use the class-only vocabulary as class IDs; only use the datatype-only 
vocabulary as datatype IDs; only use rdfs:Literal in data ranges;
only use the property-only vocabulary as datavaluedProperty IDs, 
individualvaluedProperty IDs,  annotationProperty IDs 
***
or ontologyPropertyIDs;
only use the built-in annotation properties as  annotationProperty IDs;
only use the built-in ontology properties as  ontologyProperty IDs;
 ***
and do not mention any disallowed vocabulary.
]]

Jeremy


[1]
 http://lists.w3.org/Archives/Public/www-webont-wg/2003Dec/0063
Received on Friday, 9 January 2004 06:17:22 GMT

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