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RE: Annotations and non-mon example

From: Jos De_Roo <jos.deroo@agfa.com>
Date: Fri, 31 Jan 2003 23:48:13 +0100
To: "Jim Hendler <hendler" <hendler@cs.umd.edu>
Cc: "Jeremy Carroll" <jjc@hplb.hpl.hp.com>, "Peter F. Patel-Schneider" <pfps@research.bell-labs.com>, www-webont-wg@w3.org, www-webont-wg-request@w3.org
Message-ID: <OF3C5EC255.36AF6007-ONC1256CBF.007B243F-C1256CBF.007D45A6@agfa.be>


>>  > *However*, in the abstract syntax this is not an addition of new
>>>   information.  Instead, it is a *change*.  Therefore there is no
>>>   non-monotonicity.
>>>
>>
>>Yes ...., but that is angels on pinheads stuff.
>>
>>Could I suggest it would be clearer with a new rdfs:Class
>>   owl:AnnotationProperty
>>and we require all annotation properties to be of this class.
>>
>>This is not my preferred solution, which I have already posted; but is
>>intended as the least change proposal that makes the current text a
little
>>more tractable.
>>
>>This has the following positive effects:
>>1: Greater uniformity in the everything has a class rule (hence easier to
>>understand for the naive user)
>>2: Better reflecting the abstract syntax distinctions (between three
types
>>of property: DatatypeProperty, ObjectProperty and annotations) in the
>>concrete syntax
>>3: More robust against user error (like forgetting a DatatypeProperty
>>declaration).
>>
>>Jeremy
>
>
>I could live with this (in fact, as a tool builder it would be useful
>- because we could use subclasses of annotationProperty to do some
>nice management things - like knowing which policy to assign to which
>annotation etc) Would be useful in Full as well as in Lite/DL, but in
>Full it would just not be required - so a nice one w/minimal changes
>and fairly easy to document.
>  Speaking not as program chair, but as AC rep for an organization
>that builds Owl tools,  I would be able to support this proposal

well, I just can't for the moment
I would object (for the first time) and on charter grounds

[[[
This Working Group, part of the Semantic Web Activity,
will focus on the development of a language to *extend*
the semantic reach of current XML and RDF meta-data efforts.
]]]

extend, not take away


-- ,
Jos De Roo, AGFA http://www.agfa.com/w3c/jdroo/
Received on Friday, 31 January 2003 17:50:15 GMT

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