On Oct 14, 2011, at 10:32 , Martin Hepp wrote: > Hi all: > > My simple take is to define a reserved keyword "secondaryType" for itemprop that is used for attaching additional types without creating ambiguity about the scope of the properties. Semantically, this would be equivalent to rdf:type, and you will want to allow multiple of those. I completely agree. This would be clear of any possible ambiguities. Ivan > > The nice thing of this approach is: > > 1. You could start by simply adding this to http://schema.org/Thing without a need to update the Microdata spec first. So you could get this done within a day. > 2. You could later add this to the spec. > 3. There is no confusion about the scope of local properties. > 4. The mapping to RDF is trivial (simply use the full URI of rdf:type). > 5. You do not introduce a new Microdata core keyword, just a predefined property. > > Example > > <div itemscope itemtype="http://schema.org/Product"> > <link itemprop="secondaryType" href="http://www.productontology.org/id/Hammer" /> > <link itemprop="secondaryType" href="http://example.org/my_ontology.owl#Tool" /> > <!-- other schema.org properties go in here --> > </div> > > One prop, and you will be all set, and the SW community and the search engines can live and prosper in love, peace and harmony ;-) > > Martin > > > On Oct 13, 2011, at 8:34 PM, Stéphane Corlosquet wrote: > >> >> >> On Thu, Oct 13, 2011 at 6:32 PM, Jeni Tennison <jeni@jenitennison.com> wrote: >> Lin, (Steph,) >> >> Yes, I thought there were examples in Drupal. I was looking at openspring.net and saw that there's typeof="schema:Person sioc:UserAccount". The point of using schema.org is obvious, and there are a list of SIOC applications at: >> >> http://www.w3.org/Submission/sioc-applications/#using >> >> Do you know anything about the current state of any of the SIOC apps? >> >> I'm cc'ing John, Alex and Uldis for an update on the SIOC apps. >> >> Steph. >> >> >> Jeni >> -- >> Jeni Tennison >> http://www.jenitennison.com >> >> > > ---- Ivan Herman, W3C Semantic Web Activity Lead Home: http://www.w3.org/People/Ivan/ mobile: +31-641044153 PGP Key: http://www.ivan-herman.net/pgpkey.html FOAF: http://www.ivan-herman.net/foaf.rdf
Received on Friday, 14 October 2011 08:38:57 UTC