This is the archive of the goodrelations dicussion list

Hi Steve,
I share your opinion: I would include directly into a given ontology 
only a few rock-solid mappings. Most useful mappings are not generally 
valid, and most generally valid mappings are practically useless. The 
power of mapping unfolds imo when you take things as equivalent that are 
only similar or related.

One issue with mappings is that mappings between OWL DL ontologies and 
RDFS vocabs turn an otherwise clean OWL DL model into OWL Full, which 
may be undesirable. If you do only RDFS reasoning, that won't matter, 
but if you have to remain in the decidable DL fragment, then you rather 
abstain from including those mappings.

This is why I favor separate sets of  mapping rules / axioms that can be 
selected and added to a given RDF model as needed. In the case of 
GoodRelations, we will provide such rulesets at

http://www.ebusiness-unibw.org/wiki/GoodRelationsOptionalAxiomsAndLinks#Useful_Rulesets

Best
Martin

Steven Forth wrote:
> There is a deeper issue here that we should think about as a community.
>
> Should ontologies be merged or should they be allowed to exist and evolve
> independently, and be used together through name spacing, an simple upper
> level ontology, and site specific rules.
>
> My own opinion is that at this point in time it is better to allow
> independent evolution and diversity and find light and loosely linked
> approaches to using different ontologies together.
>
> Steven
>
> On Tue, Jun 23, 2009 at 9:06 PM, Kingsley Idehen <kidehen at openlinksw.com>wrote:
>
>   
>>  Martin Hepp (UniBW) wrote:
>>     
>>> Hi Sherman:
>>> Thanks - Briefly: I think we should integrate the efforts. Basically,
>>> it is simple to model wants and needs in GoodRelations. You just use a
>>> gr:Offering with the gr:BusinessFunction gr:Sell - this goes with the
>>> batteries supplied in the current version of GoodRelations (even
>>> though I never thought of this application before).
>>>
>>> Example: I am interested in buying one TV set with a screen size of at
>>> least 30 centimeters, and i am not interested in offers more expensive
>>> than 200 euros:
>>>
>>> foo refers to the namespace of the example
>>> pcs refers to the namespace of a fictuous ontology for product types
>>> and features (e.g. eclassOWL or others)
>>>
>>> foo:martinhepp
>>>     a gr:BusinessEntity;
>>>     gr:offers foo:myWant1.
>>>
>>> foo:myWant1
>>>       a gr:Offering ;
>>>       gr:hasBusinessFunction gr:Buy;
>>>       gr:hasPriceSpecification foo:UnitPriceSpecification_1 ;
>>>       gr:includesObject foo:TypeAndQuantityNode_1 .
>>>
>>> foo:myDreamTVSet
>>>       a pcs:TVSet , gr:ProductOrServiceSomeInstancesPlaceholder;
>>>       pcs:hasScreenSize foo:QuantitativeValueFloat_1.
>>>
>>> foo:QuantitativeValueFloat_1
>>>       a gr:QuantitativeValueFloat ;
>>>       gr:hasUnitOfMeasurement "CMT"^^xsd:string ;
>>>       gr:hasMinValueFloat "30.0"^^xsd:float .
>>>
>>> foo:TypeAndQuantityNode_1
>>>       a gr:TypeAndQuantityNode ;
>>>       gr:amountOfThisGood "1.0"^^xsd:float ;
>>>       gr:hasUnitOfMeasurement "C62"@en ;
>>>       gr:typeOfGood foo:myDreamTVSet .
>>>
>>> foo:UnitPriceSpecification_1
>>>       a gr:UnitPriceSpecification ;
>>>       gr:hasCurrency "EUR"^^xsd:string ;
>>>       gr:hasMaxCurrencyValue "200.0"^^xsd:float ;
>>>       gr:hasUnitOfMeasurement "C62"^^xsd:string .
>>>
>>>
>>> In order to make this a bit more beautiful an powerful, I could
>>> introduce a new objectproperty "seeks" that is used instead of
>>> "offers" to link between a business entity and an offering.
>>>
>>>
>>> That would be a minimal change to the vocabulary but would allow to
>>> reverse all BusinessFunctions (e.g. seeks maintance, seeks disposal,
>>>       
>> etc."
>>     
>>> What do you think?
>>>       
>> Neat!
>>
>> Kingsley
>>  >
>>     
>>> Best
>>> Martin
>>>
>>>
>>>
>>>
>>> Sherman Monroe wrote:
>>>       
>>>> Hi All,
>>>> I've considering the GoodRelations ontology for overdogg.com wants and
>>>> needs. Looking at the GR spec [1], I am not able to see anything classes
>>>>         
>> or
>>     
>>>> properties for describing wants/needs. I created the Things You Want and
>>>> Need (TIWAN) ontology[2] to model wants/needs as well as reverse
>>>> auction-style marketplace. I would like to know if a merge between the
>>>>         
>> two
>>     
>>>> would be something that you would be interested in. I can definitely see
>>>> where GR plugs into TIWAN, e.g. to describe providers/suppliers. Is
>>>> wants/needs within the scope of GR, or should I continue using TIWAN
>>>>         
>> with
>>     
>>>> tie-ins to GR?
>>>>
>>>> [1] http://www.heppnetz.de/ontologies/goodrelations/v1#
>>>> [2] http://overdogg.com/ontology/tiwan/
>>>>
>>>>
>>>> ------------------------------------------------------------------------
>>>>
>>>> _______________________________________________
>>>> goodrelations mailing list
>>>> goodrelations at ebusiness-unibw.org
>>>> http://ebusiness-unibw.org/cgi-bin/mailman/listinfo/goodrelations
>>>>
>>>>         
>>> --
>>> --------------------------------------------------------------
>>> martin hepp
>>> e-business & web science research group
>>> universitaet der bundeswehr muenchen
>>>
>>> e-mail:  mhepp at computer.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 the GoodRelations vocabulary for E-Commerce on the Web of Data!
>>> ========================================================================
>>>
>>> Webcast:
>>> http://www.heppnetz.de/projects/goodrelations/webcast/
>>>
>>> Talk at the Semantic Technology Conference 2009:
>>> "Semantic Web-based E-Commerce: The GoodRelations Ontology"
>>> http://tinyurl.com/semtech-hepp
>>>
>>> Tool for registering your business:
>>> http://www.ebusiness-unibw.org/tools/goodrelations-annotator/
>>>
>>> Overview article on Semantic Universe:
>>> http://tinyurl.com/goodrelations-universe
>>>
>>> Project page and resources for developers:
>>> http://purl.org/goodrelations/
>>>
>>> Tutorial materials:
>>> Tutorial at ESWC 2009: The Web of Data for E-Commerce in One Day: A
>>>       
>> Hands-on Introduction to the GoodRelations Ontology, RDFa, and Yahoo!
>> SearchMonkey
>>     
>>> http://www.ebusiness-unibw.org/wiki/GoodRelations_Tutorial_ESWC2009
>>>
>>>
>>>
>>>
>>>       
>> --
>>
>>
>> Regards,
>>
>> Kingsley Idehen       Weblog: http://www.openlinksw.com/blog/~kidehen
>> President & CEO
>> OpenLink Software     Web: http://www.openlinksw.com
>>
>>
>>
>>
>>
>> _______________________________________________
>> goodrelations mailing list
>> goodrelations at ebusiness-unibw.org
>> http://ebusiness-unibw.org/cgi-bin/mailman/listinfo/goodrelations
>>
>>     
>
>
>
>   

-- 
--------------------------------------------------------------
martin hepp
e-business & web science research group
universitaet der bundeswehr muenchen

e-mail:  mhepp at computer.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 the GoodRelations vocabulary for E-Commerce on the Web of Data!
========================================================================

Webcast:
http://www.heppnetz.de/projects/goodrelations/webcast/

Talk at the Semantic Technology Conference 2009: 
"Semantic Web-based E-Commerce: The GoodRelations Ontology"
http://tinyurl.com/semtech-hepp

Tool for registering your business:
http://www.ebusiness-unibw.org/tools/goodrelations-annotator/

Overview article on Semantic Universe:
http://tinyurl.com/goodrelations-universe

Project page and resources for developers:
http://purl.org/goodrelations/

Tutorial materials:
Tutorial at ESWC 2009: The Web of Data for E-Commerce in One Day: A Hands-on Introduction to the GoodRelations Ontology, RDFa, and Yahoo! SearchMonkey

http://www.ebusiness-unibw.org/wiki/GoodRelations_Tutorial_ESWC2009




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