This wiki has been archived and is now read-only.


From RDF Data Shapes Working Group
Jump to: navigation, search

Transition Request

This is a transition request for one document from the RDF Data Shapes Working Group to Candidate Recommendation:


Document title, URIs, and estimated publication date

Document Abstract and Status sections


This document defines the SHACL Shapes Constraint Language, a language for validating RDF graphs against a set of conditions. These conditions are provided as shapes and other constructs expressed in the form of an RDF graph. RDF graphs that are used in this manner are called "shapes graphs" in SHACL and the RDF graphs that are validated against a shapes graph are called "data graphs". As SHACL shape graphs are used to validate that data graphs satisfy a set of conditions they can also be viewed as a description of the data graphs that do satisfy these conditions. Such descriptions may be used for a variety of purposes beside validation, including user interface building, code generation and data integration.


  • Standard Respec

Decision to request transition

Original: https://www.w3.org/2017/03/22-shapes-minutes.html#resolution10

Amended: https://www.w3.org/2017/04/05-shapes-minutes.html#resolution04


See https://github.com/w3c/data-shapes/commits/gh-pages/shacl/index.html

Color-coded HTML diff of changes between Mar 30 (initial transition meeting) and Apr 5 (amended request): https://www.w3.org/People/Sandro/diff-shacl-mar30-apr05

Requirements satisfied

Charter says:

The mission of the RDF Data Shapes Working Group is to produce a language for defining structural constraints on RDF graphs. In the same way that SPARQL made it possible to query RDF data, the product of the RDF Data Shapes WG will enable the definition of graph topologies for interface specification, code development, and data verification.

The group produced:

Dependencies met (or not)

All outbound Normative References are to W3C Recommendations or mature RFCs.

No known inbound references.

Wide Review

"Last Call" review was requested via public-review-announce@w3.org, semantic-web@w3.org, public-ldp@w3.org, www-international@w3.org, and public-rdf-shapes@w3.org.

Over the life of the WG:

Due to a concern raised by a commenter about possible flaws in the comment tracking process, the group particularly welcomes during CR the re-submission of any earlier comments that turn out to have not been properly addressed. The WG does not know of any such comments.


Conferences, workshops, meetup sessions on SHACL:

Blog posts, articles, papers, books on SHACL:

Issues addressed

See tags and history on issue tracker and GitHub.

Formal objections


See SHACL Test Suite and Implementation Report (Just started!)

Implementations are also gathered at https://www.w3.org/2014/data-shapes/wiki/Main_Page#Implementations

Patent Disclosures

None as of this writing