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Re: quick question about polymorphism in schema.org

From: Stuart Owen <stuart.owen@manchester.ac.uk>
Date: Fri, 4 Oct 2019 16:16:42 +0100
To: "Gray, Alasdair J G" <A.J.G.Gray@hw.ac.uk>
Cc: "public-bioschemas@w3.org" <public-bioschemas@w3.org>
Message-ID: <1a971afe-cf2f-d3b2-46a7-776fa505c271@manchester.ac.uk>

Thanks Alasdair. It was part of the process of letting you know about
the deployment for the bioschema deployment list, that I checked how the
example would appear and found the problem.

Stian has suggested a workaround could be to declare the type as both
Project and Organization ( @type:["Project","Organization"]) which
appears to work and make the tool happy. In this case, I don't think
we've used any Project specific attributes so should be OK. Infact, I've
just double checked and there aren't any. In this case, and since its
pending, I think we'll just use Organization for the time being.

many thanks,


On 04/10/2019 09:40, Gray, Alasdair J G wrote:
> Hi Stuart,
> Great to hear that markup will soon be included in SEEK. Once this is
> done, please let us know the deployment locations so that we can add
> these to the list of live deploys.
> I cannot speak for the inner workings of the Google structured testing
> tool. There are two possible causes. First is that Project is still in
> the pending part of schema.org <http://schema.org> and the structure
> data testing tool is using an older context (I believe that the tool
> does not load the context dynamically). Second is that the tool does
> not apply class hierarchy reasoning and therefore does not infer that
> things that are of type Project are also of type Organization.
> It is probably safe to ignore the error since RDF aware tools will
> correctly characterise a Project as being an Organization, and I
> believe that Google’s tool chain is quite relaxed about typing and
> errors in the markup.
> I hope this helps
> Alasdair
>> On 3 Oct 2019, at 13:32, Stuart Owen <stuart.owen@manchester.ac.uk
>> <mailto:stuart.owen@manchester.ac.uk>> wrote:
>> Hi,
>> I guess this is more of a schema.org <http://schema.org> question,
>> rather than bioschema.org <http://bioschema.org> specifically, but
>> still relevant and hopefully somebody can help.
>> Thanks to some productive days at the ELIXIR UK Hackathon, we've now
>> added and deployed quite a lot of new Bioschema descriptions to
>> https://fairdomhub.org and will be included in our next SEEK release.
>> When testing with Googles structured data testing tool, I've noticed
>> it reports an error due to a link from Dataset#provider to a Project,
>> when it expects and Organization (or Person). However, Project is a
>> subclass of Organization, so I'd expect it to be OK.
>> Should I be concerned about this, or is it safe to say its a
>> limitation of the Structured Testing tool?
>> thanks,
>> Stuart.
> --
> Alasdair J G Gray
> Associate Professor in Computer Science, 
> School of Mathematical and Computer Sciences 
> Heriot-Watt University, Edinburgh, UK.
> Email: A.J.G.Gray@hw.ac.uk <mailto:A.J.G.Gray@hw.ac.uk>
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Received on Friday, 4 October 2019 15:17:09 UTC

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