- From: Janet Daly <janet@w3.org>
- Date: Mon, 27 Mar 2000 15:59:21 -0500
- To: www-rdf-interest@w3.org
The Resource Description Framework (RDF) Schema Specification has received editorial revisions and today is published as a W3C Candidate Recommendation. The specification is available at: http://www.w3.org/TR/2000/CR-rdf-schema-20000327 >From the RDF Schema Abstract: This specification describes how to use RDF to describe RDF vocabularies. The specification also defines a basic vocabulary for this purpose, as well as an extensibility mechanism to anticipate future additions to RDF. >From the W3C Process Document on Candidate Recommendations, section 6.2.3 at: http://www.w3.org/Consortium/Process/Process-19991111/tr.html#RecsCR Advancement of a document to Candidate Recommendation is an explicit call to those outside of the related Working Groups or the W3C itself for implementation and technical feedback. There is no requirement that a Working Draft have two independent and interoperable implementations to become a Candidate Recommendation. Instead, this is the phase at which the Working Group is responsible for formally acquiring that experience or at least defining the expectations of implementation. The RDF Schema Candidate Recommendation is an editorial revision and updates the previous RDF Schema Proposed Recommendation. As part of the editorial changes, the document editors have also extracted part of the original RDF Schema Proposed Recommendation illustrating a way to represent PICS 1.1 in RDF and published it as a W3C Note. The title is "PICS Rating Vocabularies in XML/RDF," and can be found at: http://www.w3.org/TR/2000/NOTE-rdf-pics-20000327 >From the Abstract: PICS, the Platform for Internet Content Selection, is a system for associating metadata (PICS "labels") with Internet content. PICS provides a mechanism whereby independent groups can develop metadata vocabularies without naming conflict. The syntax of a PICS label is very compact and does not use and of the subsequent Web technology such as XML and XSL. RDF, the Resource Description Framework, provides a model for representing metadata that is even more general than PICS, with more expressive power, and uses XML syntax. A goal of RDF was to permit the mechanical translation of PICS metadata into RDF form. This document represents one possible mapping of PICS into XML/RDF. >From Status of this Document: A Note is a dated, public record of an idea, comment, or document made available by the W3C for discussion only. The publication of a Note does not imply endorsement of its contents by W3C. -------------------------------------- Reasoning for Candidate Recommendation -------------------------------------- Based on Member feedback of the first RDF Schema Proposed Recommendation, the director asked for a briefing document outlining an architectural relationship between RDF Schema and XML Schema work. Members from the RDF Schema and XML Schema communities met and produced the Cambridge Communiqué, at: http://www.w3.org/TR/1999/NOTE-schema-arch-19991007 The points addressed in this document are not the only markers of progress on RDF Schema. Progress made by the XML Schema Working Group, contributions and feedback from the RDF Interest Group, and the development of the Candidate Recommendation state to the W3C Recommendation track have all served the developing specification. The combination of developments led me to conclude that it is most appropriate to consider the RDF Schema specification in Candidate Recommendation phase and to republish the document with editorial updates as a new W3C Candidate Recommendation. ------------ Next Actions ------------ During the Candidate Recommendation phase, the W3C solicits detailed implementation and technical feedback on the specification. Several projects are currently implementing RDF Schema. The Working Group would like to see more implementations and receive feedback. The WG asks that comments and, in particular, any comments that are accompanied by requested changes to the specification, be made to www-rdf-comments@w3.org prior to 15 June 2000. The disposition of comments is maintained at: http://www.w3.org/2000/03/rdfschemacomments and will be revised during the review period. The RDF WG acknowledges and appreciates the feedback and suggestions already made in the RDF Interest Group, archived at: http://lists.w3.org/Archives/Public/www-rdf-interest/ The interest of the community in enhancing all parts of RDF is appreciated, and evidence of that interest is important in prioritizing future work. for Tim Berners-Lee, Director Janet Daly, Head of Public Relations ===================================== World Wide Web Consortium (W3C) Janet Daly, Head of Public Relations +1.617.253.5884 janet@w3.org
Received on Monday, 27 March 2000 15:58:43 UTC