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Submission request to W3C ( W3C Team Comment )

Submission Request to W3C: Shape Expressions 1.0

Submitted Materials

We, W3C Member(s) , INRIA, Mayo Clinic and SemanticWeb.com, hereby submit to the Consortium the following specification, comprising the following document(s) attached hereto:

  1. Shape Expressions 1.0 Primer
  2. Shape Expressions 1.0 Definition

which collectively are referred to as "the Submission". We request the Submission be known as the Shape Expressions Submission.


Shape Expressions is an abstract syntax and semantics for defining constrain the properties, types and cardinality of nodes in RDF graphs. This can be itself be represented in RDF, and as such extends the Resource Shapes RDF vocabulary. An isomorphic text syntax provides a terse and intuitive presentation of Shape Expressions.

Intellectual Property Statements

The below statements concerning Copyrights, Trade and Service Marks, and Patents, have been made by the following people on behalf of themselves and their affiliated organizations:


Each organization, respectively, hereby grants to the W3C a perpetual, nonexclusive, royalty-free, world-wide right and license under any its copyrights on this contribution, to copy, publish and distribute the contribution under the W3C document licenses.
Additionally, should the Submission be used as a contribution towards a W3C Activity, each organization grants a right and license of the same scope to any derivative works prepared by the W3C and based on, or incorporating all or part of, the contribution. Each organization further agrees that any derivative works of this contribution prepared by the W3C shall be solely owned by the W3C.


Each organization, respectively, agrees to offer licenses according to the W3C Royalty-Free licensing requirements described in section 5 of the 5 February 2004 W3C Patent Policy for any portion of the Submission that is subsequently incorporated in a W3C Recommendation.

Suggested action

The RDF Validation Workshop, held in September 2013, ended with consensus on the need for

  1. Declarative definition of the structure of a graph for validation and description.
  2. Extensible to address specialized use cases.
  3. A mechanism to associate descriptions with data.

We suggest that the Consortium proceeds with the creation of such a Working Group and uses this Submission and Resource Shapes as a starting point.


Inquiries from the public or press about this Submission should be directed to: Eric Prud'hommeaux <eric@w3.org>


This 2nd of June, 2014,