- From: Phil Archer <phila@w3.org>
- Date: Mon, 3 Aug 2015 17:48:33 +0100
- To: public-rdf-shapes@w3.org
Hi, I've had an opportunity to take a look at the SHACL work today and I notice one of the use cases looks set to be missed - although only just. The UCR doc includes the one about self-describing Linked Data [1] which talks about the value of a property being a skos:Concept. Are you considering making this a little tougher, i.e. that the value of a given property is a concept defined in a specific scheme? I see that SHACL allows the enumeration of values [2], but I want to be able to say "any value from the SKOS Concept scheme at <foo>". It looks like SHACL won't support that? Use Case: INSPIRE INSPIRE [0] - the European Union's obligatory set of standards for environmental and geospatial data - has a handy registry of SKOS concept schemes [3]. In one of my projects, I've been working on creating RDF vocabularies that are compatible with the INSPIRE data model, such as the one about protected sites [4]. That has a property ps:siteDesignation for which the range is defined as skos:Concept but really what it should say is: the value of this property should be a skos:Concept in the scheme at http://inspire.ec.europa.eu/codelist/DesignationValue/. It would be inappropriate to enumerate the concepts in that concept scheme (there are 6 of them) since it is under a different organisation's change control. I recognise that this leads to the possibility that a graph that is valid today may become invalid if the INSPIRE Registry were to be amended but that's a management task for the European Commission to worry about (i.e. the people responsible for the INSPIRE data model) and they would need to be mindful of such situations which would occur whether we were talking about RDF graphs or dollops of GML, so I don't think that's a show stopper here. WDYT? Phil. [0] http://inspire.ec.europa.eu/ [1] http://w3c.github.io/data-shapes/data-shapes-ucr/#uc28-self-describing-linked-data-resources [2] http://w3c.github.io/data-shapes/shacl/#AbstractAllowedValuesPropertyConstraint [3] http://inspire.ec.europa.eu/registry/ [4] http://www.w3.org/2015/03/inspire/ps -- Phil Archer W3C Data Activity Lead http://www.w3.org/2013/data/ http://philarcher.org +44 (0)7887 767755 @philarcher1
Received on Monday, 3 August 2015 16:48:37 UTC