Please review R2RML SotD section


I'm finalizing the R2RML CR draft. Please review the “Status of this Document” section:

The text (without hyperlinks) is also pasted below for your convenience.

As noted earlier, I'm unsure about what exactly an “implementation report” is, so I decided that it's the document that the WG will prepare to summarize the state of implementations at the end of CR, while the things that implementers submit to the WG to show the conformance of their implementations are simply “test results” and not “implementation reports”.

Hence, the following resolution didn't make any sense:


and I'm moving that wiki page to
instead. A link in the SotD section points there. This may need synchronizing with the DM draft in case Eric has put a similar link there.


Status of this Document

May Be Superseded

This section describes the status of this document at the time of its publication. Other documents may supersede this document. A list of current W3C publications and the latest revision of this technical report can be found in the W3C technical reports index at

Candidate Recommendation

This document is a W3C Candidate Recommendation Draft of the "R2RML: RDB to RDF Mapping Language". The W3C publishes a Candidate Recommendation to indicate that the document is believed to be stable and to encourage implementation by the developer community. The RDB2RDF Working Group expects to request that the Director advance this document to Proposed Recommendation once the Working Group has verified two interoperable implementations of the Candidate Recommendation, but no earlier than 30 April 2012. A preliminary implementation report is available.

Feedback and Test Reports

The Working Group primarily seeks feedback related to implementations of R2RML, but feedback on any aspect of the document is welcome. Comments and implementation reports should be sent to, a mailing list with a public archive. The Working Group is developing an R2RML test suite and encourages the submission of formal test results to aid the implementation report.

Changes Since Last Call Working Draft

Changes since the previous Working Draft have mainly focused on the mapping of SQL data values to RDF literals. The mapping algorithm has been improved, and the relevant section has been rewritten to increase clarity. Other significant changes include the removal of syntactic sugar that allowed rr:sqlQuery on triples maps, and allowing multiple predicate maps and object maps on a single predicate-object map. Turtle has been confirmed as the normative syntax for R2RML mapping documents. A detailed description of changes and a diff of all changes since Last Call are available. The Working Group expects no further changes, and no features are considered at risk.

No W3C Endorsement

Publication as a Candidate Recommendation does not imply endorsement by the W3C Membership. This is a draft document and may be updated, replaced or obsoleted by other documents at any time. It is inappropriate to cite this document as other than work in progress.


This document was produced by a group operating under the 5 February 2004 W3C Patent Policy. W3C maintains a public list of any patent disclosuresmade in connection with the deliverables of the group; that page also includes instructions for disclosing a patent. An individual who has actual knowledge of a patent which the individual believes contains Essential Claim(s) must disclose the information in accordance with section 6 of the W3C Patent Policy.

Received on Thursday, 2 February 2012 10:55:39 UTC