- From: Arthur Ryman <ryman@ca.ibm.com>
- Date: Fri, 1 Aug 2014 15:44:35 -0400
- To: public-rdf-shapes@w3.org
The output of the wg is defined by its deliverables. Here is the current text [1] Recommendation Track: 1. Compact, human readable syntax for expressing constraints on RDF graph patterns (aka shapes), suitable for the use cases determined by the group. This syntax might be a variation of an existing standard, such as templates for SPARQL, or something new, such as ShExC. 2. An RDF vocabulary, such as Resource Shapes 2.0, for expressing these shapes in RDF triples, so they can be stored, queried, analyzed, and manipulated with normal RDF tools. The WG MAY produce a Recommendation for graph normalization. This text is not acceptable to IBM because of the primary emphasis it places on defining a possibly new compact, human readable syntax. I believe this concern has been expressed repeatedly by many people on the mailing list. Many people have indicated a strong preference for building on existing standards. However, we have not seen any corresponding modification of the charter. I'd therefore like to propose a strawman change to this section of the charter and invite comment. Here is the proposed new text: The WG MUST produce: 1. A high-level RDF vocabulary that expresses commonly occurring constraints. 2. The semantics of the high-level constraints expressed in terms of SPARQL. 3. An RDF extension mechanism for expressing additional constraints, expressed in SPARQL. The WG MAY produce: 1. A new compact, human readable syntax for expressing constraints with a corresponding semantics expressed in SPARQL. 2. A specification for graph normalization. [1] http://www.w3.org/2014/data-shapes/charter Regards, ___________________________________________________________________________ Arthur Ryman, PhD Chief Data Officer, Rational Chief Architect, Portfolio & Strategy Management Distinguished Engineer | Master Inventor | Academy of Technology Toronto Lab | +1-905-413-3077 (office) | +1-416-939-5063 (mobile)
Received on Friday, 1 August 2014 19:45:08 UTC