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Dear Alex,
I forgot the links to the references:


   1. Hepp, Martin: Products and Services Ontologies: A Methodology for 
Deriving OWL Ontologies from Industrial Categorization Standards, in: 
Int'l Journal on Semantic Web & Information Systems (IJSWIS), Vol. 2, 
No. 1, pp. 72-99, January-March 2006.

   2.  Hepp, Martin: GoodRelations: An Ontology for Describing Products 
and Services Offers on the Web, Proceedings of the 16th International 
Conference on Knowledge Engineering and Knowledge Management (EKAW2008), 
Acitrezza, Italy, September 29 - October 3, 2008, Springer LNCS, Vol 
5268, pp. 332-347.

Both are available as PDF at 
http://www.heppnetz.de/projects/goodrelations/downloads/

Best
Martin


Martin Hepp (UniBW) wrote:
> Dear Alex:
> Welcome to the mailing list and the GoodRelations community. Please 
> make sure you are using the new version of eClassOWL 5.1.4 from the 
> following locations:
>
> a) eClassOWL 5.1.4 Products and Services Ontology (OWL):
> http://www.ebusiness-unibw.org/ontologies/eclass/5.1.4/
>
> (Warning: The file is very large - 38.3 MB for RDF/XML and 71.8 MB for 
> HTML)
>
> b) eClassOWL 5.1.4 Products and Services Ontology and documentation, 
> compressed (OWL + HTML, zip): 
> http://www.ebusiness-unibw.org/ontologies/eclass/5.1.4/eclass_514en.zip 
> (4.7 MB)
>
> The version at http://www.heppnetz.de/projects/eclassowl/ is outdated 
> and not fully compatible with GoodRelations.
>
> As for the structure of eClassOWL: This is determined by the class 
> structure of the eClass standard, from which eClassOWL is derived by 
> means of the algorithm explained in [1]. eClass is a broad, 
> multi-industry initiative for providing classes and attributes for 
> sourcing, mainly in the industrial sector. This is why parts of the 
> class hierarchy may seem unsuitable for procurement in the commodity / 
> B2C sector.
>
> Note that using GoodRelations does not require using eClassOWL, too. 
> In fact. there are many scenarios in which other options are better, 
> e.g. creating your own ontology for the types of products ( see
>
> http://www.heppnetz.de/projects/goodrelations/documentation/vocabulary-dev
>
> for instructions).
>
> You can also describe your articles just by textual labels and still 
> benefit from GoodRelations - all the commercial and logistical details 
> of the offering will then be fully machine-readable, while the search 
> by product types will be a bit limited. But often, that will still be 
> a good solution, in particular if your source data is not already 
> preclassified according to eClass.
>
> Again, welcome to the crowd ;-)
>
> Best wishes
> Martin
>
> PS: As for Jena snippets, I don't have any at hand - but there should 
> be plenty on the Web. You can also use
>
> http://www.ldodds.com/projects/twinkle/
>
> If I remember correctly, you can also get the source code.
>
> As a first starter, though, I would look at the excellent Jena online doc.
>
> Another hint: When starting, make sure that you keep properly apart 
> conceptual issues (OWL language, ...) and Jena. You should first 
> understand the underlying SW concepts and specifications before 
> thinking in Jena method calls etc.
>
> Alex Genadinik wrote:
>> Hi,
>>
>> I am a software engineer currently working on an eCommerce semantic 
>> web project.  I am evaluating the combination of eClassOWL and the 
>> goodRelations ontologies.  Thank you for adding me to the mailing 
>> list.  I look forward to being a part of the online community.
>>
>> I do have one question I immediately have.  Why does the eClassOWL 
>> ontology have the main categories it does?  I was expecting 
>> categories like electronics/clothes/household/industrial items...and 
>> while there are some of those categories in the ontology, a huge 
>> category of clothes, for example, is missing.  Is there a reason for 
>> that?
>>
>> Thanks,
>> Alex Genadinik
>>
>> ps - are there any coding samples someone can point me to using Java 
>> (I use the JENA framework).
>>
>> Again thanks a lot and I look forward to being a part of the community.
>>
>>
>>
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