W3C home > Mailing lists > Public > public-bioschemas@w3.org > December 2017

Re: ShEX vs JSON schema

From: Franck Michel <franck.michel@cnrs.fr>
Date: Wed, 13 Dec 2017 16:51:27 +0100
To: public-bioschemas@w3.org
Message-ID: <dac345b8-c876-2c87-1d48-067431ace0e7@cnrs.fr>
Dear all,

I agree that ShEx or SHACL are preferable to JSON schema: JSON schema 
obviously applies only to JSON, whereas we would rather have a mechanism 
that applies to RDF in general, whatever the serialization syntax.

As to the choice between ShEx and SHACL, I must admit I'm puzzled. Does 
any of you have a pointer to a comparison, their respective B's and C's, 
application fields etc.? A quick lookup did not bring much, and at this 
point I just feel like they are competitors. I assume/hope there is more 
than that.


Le 13/12/2017 à 11:00, Gray, Alasdair J G a écrit :
> Dear All,
> Leyla, thanks for kicking of this conversation on the list. It is 
> something that I have discussed with several people in face-to-face 
> conversations.
>> On 12 Dec 2017, at 17:41, Leyla Garcia <ljgarcia@ebi.ac.uk 
>> <mailto:ljgarcia@ebi.ac.uk>> wrote:
>> Any thoughts on using ShEX [1] or SHACL [2] rather than JSON schema 
>> [3] for validation purposes?
> ShEx and SHACL are both more expressive than JSON schema, and better 
> capture the validation needs of the Bioschemas profiles. In 
> particular, they allow for the capture of relationships between 
> entities and also restrictions on the vocabulary terms used.
> Between ShEx and SHACL it is a closer run thing and we are doing some 
> experimentation with both. ShEx has a more concise notation than SHACL 
> and I understand that it has more expressive power. However, the SHACL 
> libraries and documentation are more professionally put together and 
> of course it has the endorsement of the W3C working group.
> There will be an ELIXIR implementation study in 2018 that has a focus 
> on validation so hopefully some of these issues can be investigated in 
> that.
> Best regards
> Alasdair
> Alasdair J G Gray
> Fellow of the Higher Education Academy
> Assistant Professor in Computer Science,
> School of Mathematical and Computer Sciences
> (Athena SWAN Bronze Award)
> Heriot-Watt University, Edinburgh UK.
> Email: A.J.G.Gray@hw.ac.uk <mailto:A.J.G.Gray@hw.ac.uk>
> Web: http://www.macs.hw.ac.uk/~ajg33 <http://www.macs.hw.ac.uk/%7Eajg33>
> ORCID: http://orcid.org/0000-0002-5711-4872
> Office: Earl Mountbatten Building 1.39
> Twitter: @gray_alasdair
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Received on Wednesday, 13 December 2017 15:52:03 UTC

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