GoodRelations is a standardized vocabulary for product, price, and company data that can (1) be embedded into existing static and dynamic Web pages and that (2) can be processed by other computers. This increases the visibility of your products and services in the latest generation of search engines, recommender systems, and other novel applications.
Martin Hepp (UniBW)
martin.hepp at ebusiness-unibw.org
Thu Apr 9 14:37:01 CEST 2009
Hi Darren, thanks for your interest. As for RDFa: 1.) There will be full-day tutorial on using GoodRelations and RDFa at ESWC 2009, see http://www.ebusiness-unibw.org/wiki/GoodRelations_Tutorial_ESWC2009 This will also be available via videolectures.net in July or August. 2.) We are working on a recipe for using GoodRelations with RDFa, the "construction site" is at http://www.ebusiness-unibw.org/wiki/GoodRelations_Recipe_6 There is also a presentation showing it step by step, see http://www.ebusiness-unibw.org/pubwiki/images/4/4d/Www8.pdf (skip the first slides on RDFa in general). In general, you can use both a) one XHTML file for browsers and one RDF/XML file for the Semantic Web or b) one XHTML file plus embedded RDF = XHTML+RDFa for all in one. The advantage of b) is that you have all data in one place, and for simple dynamic Web sites, you just add a bit of attributes and have RDFa embedded automatically. For Semantic Web applications, both can be used - there are free libraries for extracting RDF from RDFa, e.g. http://www.w3.org/2007/08/pyRdfa/ A slight advantage of solution b) is also that the current Yahoo SearchMonkey technology crawls only for RDFa embedded in XHTML content, not for pure RDF/XML resources. A downside of RDFa is that for complex data structures, it gets pretty hard to create and maintain, since one is tangling data and presentation. In the long run, I think RDFa will dominate for a) pages based on static XHTML b) PHP-based dynamic Web applications with pretty shallow RDF export needs. Separate RDF/XML data dump files will dominate for more complex data or when you want to feed frequently updated data into search engines quickly (e.g. hotel room availability data). As for Yahoo, we have an RDF2dataRSS tool prototype which allows the conversion from RDF/XML to the Yahoo dataRSS feed format. With that tool, you can use RDF/XML files for publishing your data and still push it into Yahoo. PS: If you want to use GoodRelations in RDFa, I recommend to first get familiar with GoodRelations in RDF (RDF/XML or N3), then learn RDFa, and then try to combine both. Starting with both at the same time adds orders of magnitude of complexity. RDFa is simple for simple things, but difficult for any advanced stuff. Hope that helps! Best Martin Darren Lovelock wrote: > Hi List, > > I signed up on the list yesterday as our company is looking into ways > of making our clients e-commerce websites more search engine friendly. > > We are looking to start using XHTML + RDFa so we can insert the > attributes dynamically into our e-commerce software. > > I must say that your new Good Relations tool was a great surprise, my > business partner and I have already started using it. > > Would you be able to point me to a tutorial or comprehensive guide > that will show how to use this information in XHTML? > > I understand the logic behind it but not how the page should be > structured, there seems to be a lot of documentation but few examples! > > Any help will be greatly appreciated. > > Kind regards, > > Darren Lovelock > Munky Online Web Design > http://www.munkyonline.co.uk <http://www.munkyonline.co.uk/> > T: +44 (0)20-8816-8893 > > ------------------------------------------------------------------------ > > _______________________________________________ > goodrelations mailing list > goodrelations at ebusiness-unibw.org > http://ebusiness-unibw.org/cgi-bin/mailman/listinfo/goodrelations > -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://ebusiness-unibw.org/pipermail/goodrelations/attachments/20090409/2a36f456/attachment.html> -------------- next part -------------- A non-text attachment was scrubbed... Name: martin_hepp.vcf Type: text/x-vcard Size: 308 bytes Desc: not available URL: <http://ebusiness-unibw.org/pipermail/goodrelations/attachments/20090409/2a36f456/attachment.vcf>