Re: VRA RDF Ontology

Ghislain,


Thank you for the question. We reviewed the vocabulary that your referenced prior to our work. There are a few major differences worth pointing out.


First the vocabulary that you referenced was based on the VRA Core 3 vocabulary (which was developed circa 2002). This ontology is built from the current VRA Core 4 vocabulary. The LOC documents all of the VRA vocabularies, so please feel free to check it out (http://www.loc.gov/standards/vracore/schemas.html).


In addition to creating the Ontology, we also wanted to help facilitated it use. To help with this we produced an XSLT stylesheet that allows users that have VRA Core 4 compliant XML metadata to easily convert it into VRA RDF data.


Finally, we wanted to have an 'officially sanctioned' VRA Ontology so the development process for this VRA Core 4 Ontology was run through the VRA Core 4 Oversight Committee which included both VRA Core 4 domain experts as well as people well versed in RDF and Ontology development.


There are also a few minor differences:


1) the Core 4 ontology is built using OWL whereas the Ontology that you referenced uses RDFS.

2) We wanted to tightly couple our vocabulary with the popular Schema.org vocabulary, so we included equivalencies to Schema.org classes and properties whenever possible. This would allow someone using OWL reasoning to inference the Schema.org classes/properties into their data form the Ontology.


If you have any other questions, please feel free to let me know. The GitHub repo has the Ontology, the XSLT Stylesheet as well as sample data available for use/review.


Second,


Thanks,

Jeff Mixter
Software Engineer
OCLC Research
614-761-5159
mixterj@oclc.org


________________________________
From: Ghislain Atemezing <auguste.atemezing@eurecom.fr>
Sent: Wednesday, October 14, 2015 6:50 AM
To: Jeff Mixter
Cc: W3C Vocabularies
Subject: Re: VRA RDF Ontology

Hi Jeff,

Thanks for this effort.
Le 13 oct. 2015 à 23:15, Jeff Mixter <jeffmixter@gmail.com<mailto:jeffmixter@gmail.com>> a écrit :

Comments and questions are welcomed. Please feel free to submit them over the VRA Core listserv, which you can join at this link http://listserv.loc.gov/listarch/vracore.html<https://urldefense.proofpoint.com/v2/url?u=http-3A__listserv.loc.gov_listarch_vracore.html&d=BQMFaQ&c=JL-fUnQvtjNLb7dA39cQUcqmjBVITE8MbOdX7Lx6ge8&r=fa9R0Li9Dg4jcJRFMbtqw7fgKP67tmzu4icBDL4K_N0&m=79ZhZQczvgC_-fopKkJzHmD3tYjsN2zGH76bTEwnX54&s=ShzNUMpHlICOLC9P9cFEIOA-LM8xhpnVty-2WmKFGzU&e=>, on the GitHub repo page or email them directly to Jeff Mixter (mixterj@oclc.org<mailto:mixterj@oclc.org>).

Just to be sure if I understand this new vocabulary. Do this new release has something to do with this other VRA vocabulary [1] tracked by LOV ? It's clear that they don't share the same namespace. But just wanted to know more if there exist any relationships between those two efforts.

Best,
Ghislain


[1] http://lov.okfn.org/dataset/lov/vocabs/vra
---------------------------------------
Ghislain A. Atemezing, Ph.D
ghislain.atemezing@gmail.com<mailto:ghislain.atemezing@gmail.com>
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