- From: Martin Hepp <martin.hepp@ebusiness-unibw.org>
- Date: Sat, 2 Jul 2011 23:11:35 +0200
- To: semantic-web@w3.org, public-lod@w3.org
Dear all:
http://www.productontology.org, a service that produces more than 300,000 precise class definitions for types of products and services, is now fully schema.org-compatible and can be used to add precision to the generic http://schema.org/Product class.
Examples:
http://www.productontology.org/doc/Racing_bicycle
http://www.productontology.org/doc/Racing_bicycle#microdata
http://www.productontology.org/doc/Pancake
http://www.productontology.org/doc/Pancake#microdata
http://www.productontology.org/doc/Vinegar
http://www.productontology.org/doc/Vinegar#microdata
http://www.productontology.org/doc/Retention_basin
http://www.productontology.org/doc/Retention_basin#microdata
For each definition, Turtle, RDF/XML, and HTML is available:
http://www.productontology.org/doc/Racing_bicycle.ttl
http://www.productontology.org/doc/Racing_bicycle.rdf
http://www.productontology.org/doc/Racing_bicycle.html
Note that we do not use the flawed schema.org extension mechanism, but instead recommend the RDF-style way of narrowing down the meaning by adding a second class membership:
<div itemscope itemtype="http://schema.org/Product">
<a itemprop="http://www.w3.org/1999/02/22-rdf-syntax-ns#type" href="http://www.productontology.org/id/Retention_basin"></a>
<!-- other schema.org properties go in here -->
</div>
Instead of the empty <a> element, you could also use <link> if the WHATWG eventually decides to accept <meta> and <link> in the document body, which would be a good thing.
Best wishes
Martin Hepp
--------------------------------------------------------
martin hepp
e-business & web science research group
universitaet der bundeswehr muenchen
e-mail: hepp@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
Received on Saturday, 2 July 2011 21:12:13 UTC