Re: VRA RDF Ontology

I note that you make equivalencies between VRA classes and properties to 
schema.org classes and properties. To some extent that makes good sense, 
connecting up to a highly-used vocabulary. But at the same time, 
schema.org is known for being a bit quirky in its interpretation of RDF, 
which could have an effect on your semantics. I also don't know what the 
implications are when you make equivalencies between, for example, 
vra:Continent and schema:Continent since they are subclassed differently:

schema:Continent
   owl:Thing > schema:Thing > schema:Place > schema:Landform > 
schema:Continent

vra:Continent
   owl:Thing > vra:Place > vra:Continent

It's quite possible that in the end these differences don't matter, but 
I'm curious as to your thinking about them.

Also, it would be great to have human-readable definitions for the 
terms. For example, schema:landform is defined as "A landform or 
physical feature. Landform elements include mountains, plains, lakes, 
rivers, seascape and oceanic waterbody interface features such as bays, 
peninsulas, seas and so forth, including sub-aqueous terrain features 
such as submersed mountain ranges, volcanoes, and the great ocean 
basins." and schema:place is "Entities that have a somewhat fixed, 
physical extension." (Note that "somewhat" ;-))

Thanks,
kc



On 10/13/15 2:15 PM, Jeff Mixter wrote:
>
>       VRA Core RDF Ontology Available for Review____
>
> October 7, 2015
> <https://urldefense.proofpoint.com/v2/url?u=http-3A__vraweb.org_vra-2Dcore-2Drdf-2Dontology-2Davailable-2Dfor-2Dreview_&d=BQMFaQ&c=JL-fUnQvtjNLb7dA39cQUcqmjBVITE8MbOdX7Lx6ge8&r=fa9R0Li9Dg4jcJRFMbtqw7fgKP67tmzu4icBDL4K_N0&m=79ZhZQczvgC_-fopKkJzHmD3tYjsN2zGH76bTEwnX54&s=Udr9vKPqe48WaRjutDL1dFSqMKDbxZzvVdPhAkWleto&e=>
> VRA Core
> <https://urldefense.proofpoint.com/v2/url?u=http-3A__vraweb.org_author_vra-2Dcore_&d=BQMFaQ&c=JL-fUnQvtjNLb7dA39cQUcqmjBVITE8MbOdX7Lx6ge8&r=fa9R0Li9Dg4jcJRFMbtqw7fgKP67tmzu4icBDL4K_N0&m=79ZhZQczvgC_-fopKkJzHmD3tYjsN2zGH76bTEwnX54&s=yfIJaXCo8M8czit4gXyNJsDmBpZdptk8XCpx52mVU5Y&e=>____
>
> A taskforce setup through the VRA Core Oversight Committee (Core OC)
> <https://urldefense.proofpoint.com/v2/url?u=http-3A__vraweb.org_about_committees_vra-2Dcore-2Doversight_&d=BQMFaQ&c=JL-fUnQvtjNLb7dA39cQUcqmjBVITE8MbOdX7Lx6ge8&r=fa9R0Li9Dg4jcJRFMbtqw7fgKP67tmzu4icBDL4K_N0&m=79ZhZQczvgC_-fopKkJzHmD3tYjsN2zGH76bTEwnX54&s=5AwUn8N8PjVio2TH6nTO_MqWWkor2_BD1ETgrdcPD6Y&e=> has
> released an initial draft of a VRA Core RDF Ontology. The RDF Ontology
> is based on the Core 4.0 XML Schema and is available along with an XLST
> stylesheet that will convert VRA Core 4.0 compliant XML in RDF.
> Representing a VRA Core description in RDF allows for exposing rich VRA
> Core metadata as Linked Data, so that the descriptions may be widely
> shared and interact with other Linked Data resources on the Web, such as
> the ongoing project to release the Getty Vocabularies as linked open
> data
> <https://urldefense.proofpoint.com/v2/url?u=http-3A__www.getty.edu_research_tools_vocabularies_lod_&d=BQMFaQ&c=JL-fUnQvtjNLb7dA39cQUcqmjBVITE8MbOdX7Lx6ge8&r=fa9R0Li9Dg4jcJRFMbtqw7fgKP67tmzu4icBDL4K_N0&m=79ZhZQczvgC_-fopKkJzHmD3tYjsN2zGH76bTEwnX54&s=23IWID4UMyeJIMMVpKLaRVpf7FkNakOUqeovZyA_hxg&e=>.
> Together, these tools will allow museums, libraries and archives to
> increase exposure of their content online, allowing people to more
> easily find relevant images of cultural heritage objects, sites, and
> subjects.____
>
> __ __
>
> The Ontology, XSLT conversion stylesheet as well as example records can
> be found on GitHub at the following link
> https://github.com/mixterj/VRA-RDF-Project
> <https://urldefense.proofpoint.com/v2/url?u=https-3A__github.com_mixterj_VRA-2DRDF-2DProject&d=BQMFaQ&c=JL-fUnQvtjNLb7dA39cQUcqmjBVITE8MbOdX7Lx6ge8&r=fa9R0Li9Dg4jcJRFMbtqw7fgKP67tmzu4icBDL4K_N0&m=79ZhZQczvgC_-fopKkJzHmD3tYjsN2zGH76bTEwnX54&s=mwzbWMJRSPaDMfLA79rCUBN412HTCLPvTTjN7KyEDUg&e=>).
> The Ontology can be viewed herehttp://purl.org/vra/
> <https://urldefense.proofpoint.com/v2/url?u=http-3A__purl.org_vra_&d=BQMFaQ&c=JL-fUnQvtjNLb7dA39cQUcqmjBVITE8MbOdX7Lx6ge8&r=fa9R0Li9Dg4jcJRFMbtqw7fgKP67tmzu4icBDL4K_N0&m=79ZhZQczvgC_-fopKkJzHmD3tYjsN2zGH76bTEwnX54&s=Ds_3WMbZ8vkBqtqW2hQTbpSYKI4jJZERi7xNHeP8e1k&e=>.____
>
> 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>).____
>
> __ __
>
> *Taskforce members:*
> Jeff Mixter, Software Engineer, OCLC
> Rebecca Guenther, Metadata Specialist at Rebecca Guenther Consulting
> Trish Rose-Sandler, Data Analyst, Center for Biodiversity Informatics,
> Missouri Botanical Garden
> Michael Dulock, Metadata Librarian, University of Colorado Boulder Libraries
> Esme Cowles, Software Engineer, UC San Diego Libraries
>
>
> --
> Jeff Mixter
> jeffmixter@gmail.com <mailto:jeffmixter@gmail.com>
> 440-773-9079

-- 
Karen Coyle
kcoyle@kcoyle.net http://kcoyle.net
m: 1-510-435-8234
skype: kcoylenet/+1-510-984-3600

Received on Wednesday, 14 October 2015 16:32:41 UTC