Re: Schema.org related SHACL shapes

On 21/05/2020 03:20, James Hudson wrote:
> Hello,
>
> Dan B.,
>
>     While I am disappointed that no one has already done my work for
>     me :-), what you have confirmed (I think) is that it is work worth
>     doing and there are no known red flags against considering
>     developing SHACL Shapes which would validate schema.org
>     <http://schema.org> data instances.
>
>     If anyone can point me to specific work that have experimented
>     with creating SHACL Shapes which validate schema.org
>     <http://schema.org> data instances, I would be interested. I will
>     keep looking.
>
>     Based on the breadth and extent of schema.org <http://schema.org>,
>     it would seem to be a lot of work for complete validation.
>
>
> Alasdair,
>
>     I looked at your site, but did not see any SHACL Shapes related to
>     schema.org <http://schema.org> classes or properties. I assume you
>     are using them underneath somewhere...? Can they be shared?
>
>
> Gregory, Thomas,
>
>     Thank you for pointing me at http://datashapes.org/schema. Unless
>     I am mistaken, it ( http://datashapes.org/schema.ttl ) seems that
>     is about validating schema.org <http://schema.org> classes and
>     properties itself and not data instances.
>
No, that SHACL file is actually for instances. It is generated from the 
original RDFa definition of the schema.org classes and properties and 
interprets the specified ranges as sh:datatype and sh:class constraints. 
So you *can* use it as a shapes graph when validating instances.

And yes, it's not entirely up to date - if anyone needs the very latest 
version I could re-run the generator (which is also bundled with TBC in 
case anyone has that).

Holger


>
>     Although, their "example file" (
>     http://datashapes.org/schemashacl.shapes.ttl ) is what I am
>     looking for, but it only covers one class. Still, there will be
>     things in there that I can use.
>
>     It does provide some nice examples for how to do certain things in
>     SHACL.
>
>
> Umut, Elias,
>
>     Thank you for pointing me at semantify.it <http://semantify.it>. I
>     will have to take a closer look, but it does not appear to have
>     what I am looking for this time, which is literally a SHACL Shape
>     which can validate https://schema.org/Invoice#Invoice-gen-367 ,
>     for example -- and beyond that, SHACL Shapes which could validate
>     data instances of all of the schema.org <http://schema.org>
>     classes and properties. Incomplete solutions would be of value.
>
>
> Regards,
> James
>
>
>