Dear Karen,

some more comments

The examples sometime a bit mixed, e.g.
- the issue identifiers sometime don't match at the graph and at the
validation result (in 5.2.1 there are two issue2, and zero issue1, in
the sh:or's and sh:not examples there are three issue2.)
- in 5.2.1 there are wrong language labels
- it is not quite clear why some shapes and graphs are boxed and
others not (in the examples).

Regarding to the content: I am just curious if there are LessThan and
LessThanEquals why there is no GreaterThan and GreaterThanEquals? Yes,
we can use a reversed statement or combine Less.. with Not, but I
would prefer their availability.

Cheers,
Péter


2016-09-07 11:47 GMT+02:00 Péter Király <[log in to unmask]>:
> Hi Karen,
>
> I started to reading it, and I find it quite helpful.
>
> I have a suggestion: for me the formal definitions (such as "Shape :=
> label:IRI|BNode, targets:Set[Target], filters:Set[Shape],
> constraints:Set[Constraint]") would be more readable if they would be
> in monospace characterset - similarly than the examples.
>
> "This signifies that a Shape has four components called label,
> targets, filters, constraints. The label is either a IRI or BNode, the
> targets are a set of Targets, the filters are a set of Shapes, and the
> constraintsis a set of Constraints."
> Here I would expect a bit more explanations something like "targets
> are a set of Targets (the elements which are selected as the subject
> of validation)".
>
> I am not sure whether the result in the example for 5.1.3 Datatype
> section is right. I would expect issue2 is right because it is a
> xsd:dateTime, and issue1 is wrong because it is a xsd:date, and not
> the other way around.
>
> Do you know any existing implementation or is there a project working
> on the implementation?
>
> Best regards,
> Péter
>
>
> 2016-09-05 17:21 GMT+02:00 Karen Coyle <[log in to unmask]>:
>> Folks,
>>
>> There is a W3C standard (SHACL)[1] in development that would address the
>> issue of validation of RDF graphs. The standard itself is, as standards tend
>> to be, long and not an easy read. Eric Prud'hommeaux and I (both committee
>> members) have created a first draft of a brief reference document, in the
>> form of an Abstract Syntax of the core vocabulary of the SHACL standard. We
>> welcome any comments or corrections to this document, and any suggestions
>> for making it better. The draft is at:
>>
>> https://www.w3.org/TR/2016/WD-shacl-abstract-syntax-20160825/
>>
>> Comments should be sent to the mail list at:
>>
>> [log in to unmask]
>>
>> However, I will also entertain any discussion that takes place here, which
>> feels less formal than posting to a W3C list. Our goal is to make SHACL Core
>> as clear as possible for first time users. If this becomes a W3C standard,
>> it will probably eventually become available in various RDF-related tools.
>>
>> Thanks,
>> kc
>> [1] https://www.w3.org/TR/shacl/
>>
>>
>> -------- Forwarded Message --------
>> Subject: FIRST PUBLIC WORKING DRAFT: SHACL CORE ABSTRACT SYNTAX AND
>> SEMANTICS
>> Resent-Date: Wed, 31 Aug 2016 16:46:10 +0000
>> Resent-From: [log in to unmask]
>> Date: Wed, 31 Aug 2016 09:45:36 -0700
>> From: Karen Coyle <[log in to unmask]>
>> Reply-To: [log in to unmask]
>> To: [log in to unmask] <[log in to unmask]>
>>
>> **Please forward to interested lists**
>>
>> As announced on the W3C blog[1], the first public working draft of the SHACL
>> Core Abstract Syntax[2] has been published by the RDF Data Shapes Web
>> Working Group.[3]
>>
>> "This document defines an abstract syntax for the core SHACL (SHApes
>> Constraint Language). It is derived from the SHACL specification and is a
>> non-normative version of the content of that specification."
>>
>> We are soliciting comments (and questions) on this first draft. Please
>> comment at [log in to unmask]
>>
>> ---------
>> [1] https://www.w3.org/blog/news/archives/5749
>> [2] https://www.w3.org/TR/2016/WD-shacl-abstract-syntax-20160825/
>> [3] https:////www.w3.org/2014/data-shapes/
>>
>>
>> --
>> Karen Coyle
>> [log in to unmask] http://kcoyle.net
>> m: +1-510-435-8234
>> skype: kcoylenet/+1-510-984-3600
>
>
>
> --
> Péter Király
> software developer
> GWDG, Göttingen - Europeana - eXtensible Catalog - The Code4Lib Journal
> http://linkedin.com/in/peterkiraly



-- 
Péter Király
software developer
GWDG, Göttingen - Europeana - eXtensible Catalog - The Code4Lib Journal
http://linkedin.com/in/peterkiraly