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Oh, thank you (I was answering to Bene, and missed your message)

OK, I see. What I don't see is why gr:QuantitativeValue and gr:QualitativeValue are disjoint. But I guess you have good reasons.

Best,

fps
Le 13 nov. 2012 à 12:54, Martin Hepp <martin.hepp at ebusiness-unibw.org> a écrit :

> Ah!
> In this case, it would be better to define an independet property
> 
> foo:myProperty a owl:ObjectProperty ;
> 	rdfs:domain gr:ProductOrService ;
> 	rdfs:range  [ a owl:Class;
> 		      owl:unionOf (gr:QuantitativeValue gr:QualitativeValue) ] .
> 
> This would be the much cleaner approach, since with your approach, the range of the property is the intersection of gr:QuantitativeValue and gr:QualitativeValue, which is empty.
> 
> The only downside of my proposal is that the property will not be replicated from product models to products by the GoodRelations Axioms,
> 
>    http://wiki.goodrelations-vocabulary.org/Axioms#Product_Models
> 
> But you could simply modify the axiom to cater for that.
> 
> Martin
> 
> 
> On Nov 13, 2012, at 6:03 AM, François-Paul Servant wrote:
> 
>> Dear Martin,
>> 
>> I'm sorry, because I messed up things in my first post. I didn't want to ask about gr:qualitativeProductOrServiceProperty
>> vs gr:datatypeProductOrServiceProperty, but vs gr:quantitativeProductOrServiceProperty. They both are subproperties of owl:ObjectProperty
>> 
>> fps
>> 
>> Le 13 nov. 2012 à 11:22, Martin Hepp <martin.hepp at ebusiness-unibw.org> a écrit :
>> 
>>> Dear François-Paul:
>>> 
>>> The modeling proposed turns your ontology into OWL Full, since 
>>> 
>>> gr:qualitativeProductOrServiceProperty
>>> 
>>> is a subproperty of owl:ObjectProperty while
>>> 
>>> gr:datatypeProductOrServiceProperty
>>> 
>>> is a subproperty of owl:DatatypeProperty, and in OWL DL, no property can be both.
>>> 
>>> If you need to model the case that people should use RDF literals (text, number, whatsoever) and URIs of enumerated values, you could define a subproperty of 
>>> 
>>> gr:datatypeProductOrServiceProperty
>>> 
>>> and set the range to rdfs:Literal.
>>> 
>>> This would allow all typed and untyped RDF Literals, which includes xsd:anyURI for URIs.
>>> 
>>> A similar pattern can also be used when the values of URIs include classes and individuals and you don't want to break OWL DL.
>>> 
>>> Best
>>> 
>>> Martin Hepp
>>> 
>>> On Nov 13, 2012, at 4:40 AM, Bene Rodriguez wrote:
>>> 
>>>> Hi François-Paul,
>>>> 
>>>> In principle, it is NOT OK for a property to be a subproperty of both
>>>> gr:qualitative-, and gr:quantitativeProductOrServiceProperty.
>>>> 
>>>> These two properties, (or rather their expected values, an instance of
>>>> the class gr:Qualitative-, gr:QuantitativeValue respectively) are
>>>> intended to be disjoint or mutually exclusive by definition.
>>>> 
>>>> In case it helps, there is more info about the typical usage of these
>>>> properties and their expected values on the GoodRelations wiki:
>>>> - http://www.heppnetz.de/ontologies/goodrelations/v1.html#qualitativeProductOrServiceProperty
>>>> - http://www.heppnetz.de/ontologies/goodrelations/v1#quantitativeProductOrServiceProperty
>>>> - http://www.heppnetz.de/ontologies/goodrelations/v1#QualitativeValue
>>>> - http://www.heppnetz.de/ontologies/goodrelations/v1#QuantitativeValue
>>>> 
>>>> I could point to many more usage examples of these two properties if needed.
>>>> 
>>>> Also, in case you can share, it would be interesting to know the
>>>> modeling problem that you were trying to represent via this
>>>> hypothetical subproperty of both gr:qualitative-, and
>>>> gr:quantitativeProductOrServiceProperty.
>>>> 
>>>> Best,
>>>> Bene Rodriguez
>>>> -- 
>>>> Research Associate
>>>> E-Business and Web Science Research Group
>>>> Department of General Management and E-Business
>>>> Universitaet der Bundeswehr Munich (Germany)
>>>> phone: +49 89 6004-2849
>>>> email: benedicto.rodriguez at ebusiness-unibw.org
>>>> web:   http://purl.org/beroca
>>>> 
>>>> On Tue, Nov 13, 2012 at 8:32 AM, François-Paul Servant
>>>> <fps at semanlink.net> wrote:
>>>>> Oops,
>>>>> 
>>>>> I messed things up when writing my question. Here is what I wanted to ask:
>>>>> 
>>>>> is it OK for a property used to describe a product to be subProperty of both gr:qualitativeProductOrServiceProperty and gr:quantitativeProductOrServiceProperty?
>>>>> (I hope it is)
>>>>> 
>>>>> fps
>>>>> 
>>>>> Le 13 nov. 2012 à 00:32, François-Paul Servant <fps at semanlink.net> a écrit :
>>>>> 
>>>>>> Hi,
>>>>>> is it OK for a property used to describe a product to be subClass of both gr:qualitativeProductOrServiceProperty and gr:datatypeProductOrServiceProperty?
>>>>>> (I hope it is)
>>>>>> Best,
>>>>>> fps
>>>>> 
>>>>> 
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>>>> 
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>>> 
>>> 
>>> 
>>> --------------------------------------------------------
>>> martin hepp
>>> e-business & web science research group
>>> universitaet der bundeswehr muenchen
>>> 
>>> e-mail:  hepp at ebusiness-unibw.org
>>> phone:   +49-(0)89-6004-4217
>>> fax:     +49-(0)89-6004-4620
>>> www:     http://www.unibw.de/ebusiness/ (group)
>>>       http://www.heppnetz.de/ (personal)
>>> skype:   mfhepp 
>>> twitter: mfhepp
>>> 
>>> Check out GoodRelations for E-Commerce on the Web of Linked Data!
>>> =================================================================
>>> * Project Main Page: http://purl.org/goodrelations/
>>> 
>>> 
>>> 
>> 
>> 
>> _______________________________________________
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> 
> --------------------------------------------------------
> martin hepp
> e-business & web science research group
> universitaet der bundeswehr muenchen
> 
> e-mail:  hepp at ebusiness-unibw.org
> phone:   +49-(0)89-6004-4217
> fax:     +49-(0)89-6004-4620
> www:     http://www.unibw.de/ebusiness/ (group)
>         http://www.heppnetz.de/ (personal)
> skype:   mfhepp 
> twitter: mfhepp
> 
> Check out GoodRelations for E-Commerce on the Web of Linked Data!
> =================================================================
> * Project Main Page: http://purl.org/goodrelations/
> 
> 
>