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goodrelations

Hi Martin,

On 13 Feb 2010, at 12:02, Martin Hepp (UniBW) wrote:
> Proposed Pattern:
>
> foo:microsoft a gr:BusinessEntity;
>                        gr:legalName "Microsoft Corp.";
>                        foaf:page <http://www.microsoft.com/>.

Looks good.

> foaf:topic could be used for linking back from the Web page URI to the
> data entity URI, e.g.
>
> <http://www.microsoft.com/> foaf:topic foo:microsoft.

Yes. foaf:topic is the inverse of foaf:page.

> What's your opinion on that? Will that work with your software
> applications? Or should we use foaf:topic instead? If so, in which
> direction?

To give just one perspective: In our http://sig.ma both would work  
fine. If you used foaf:page, then the homepage URL would be shown next  
to a label saying “web page”. If you used foaf:topic, then it would be  
shown next to a label saying “is topic of”.

The first (foaf:page) is perhaps a little bit more straightforward.

> Alternative 2:
>
> foo:microsoft a gr:BusinessEntity;
>                        gr:legalName "Microsoft Corp.";
>                        foaf:topic <http://www.microsoft.com/>.

That's just plain wrong, as should be obvious from [1]. The document  
goes into the subject (domain), the thing that is the topic of the  
document goes into the object (range).

Best,
Richard

[1] http://xmlns.com/foaf/spec/#term_topic

>
> I personally think that the second alternative is wrong, because the
> data entity does not describe the Web page, but vice versa.
>
> Since this decision will be important for compatibility with SemWeb /
> Linkedata applications, I would be very thankful for your comments.
>
> Best wishes
>
> Martin Hepp
>
> -- 
>
> -- 
> --------------------------------------------------------------
> 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 page:
> http://purl.org/goodrelations/
>
> Resources for developers:
> http://www.ebusiness-unibw.org/wiki/GoodRelations
>
> Webcasts:
> Overview - http://www.heppnetz.de/projects/goodrelations/webcast/
> How-to   - http://vimeo.com/7583816
>
> Recipe for Yahoo SearchMonkey:
> http://www.ebusiness-unibw.org/wiki/GoodRelations_and_Yahoo_SearchMonkey
>
> Talk at the Semantic Technology Conference 2009:
> "Semantic Web-based E-Commerce: The GoodRelations Ontology"
> http://www.slideshare.net/mhepp/semantic-webbased-ecommerce-the-goodrelations-ontology-1535287
>
> Overview article on Semantic Universe:
> http://www.semanticuniverse.com/articles-semantic-web-based-e-commerce-webmasters-get-ready.html
>
> Tutorial materials:
> ISWC 2009 Tutorial: The Web of Data for E-Commerce in Brief: A Hands- 
> on Introduction to the GoodRelations Ontology, RDFa, and Yahoo!  
> SearchMonkey
> http://www.ebusiness-unibw.org/wiki/Web_of_Data_for_E-Commerce_Tutorial_ISWC2009
>
>
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This is the archive of the goodrelations dicussion list

[goodrelations] foaf:page vs. foaf:topic