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Internet Engineering Task Force (IETF)                        J. ReschkeRequest for Comments: 5791                                    greenbytesCategory: Informational                                         J. KunzeISSN: 2070-1721                                 University of California                                                           February 2010RFC 2731 ("Encoding Dublin Core Metadata in HTML") Is ObsoleteAbstract   This document obsoletesRFC 2731, "Encoding Dublin Core Metadata in   HTML", as further development of this specification has moved to the   Dublin Core Metadata Initiative (DCMI).Status of This Memo   This document is not an Internet Standards Track specification; it is   published for informational purposes.   This document is a product of the Internet Engineering Task Force   (IETF).  It represents the consensus of the IETF community.  It has   received public review and has been approved for publication by the   Internet Engineering Steering Group (IESG).  Not all documents   approved by the IESG are a candidate for any level of Internet   Standard; seeSection 2 of RFC 5741.   Information about the current status of this document, any errata,   and how to provide feedback on it may be obtained athttp://www.rfc-editor.org/info/rfc5791.Copyright Notice   Copyright (c) 2010 IETF Trust and the persons identified as the   document authors.  All rights reserved.   This document is subject toBCP 78 and the IETF Trust's Legal   Provisions Relating to IETF Documents   (http://trustee.ietf.org/license-info) in effect on the date of   publication of this document.  Please review these documents   carefully, as they describe your rights and restrictions with respect   to this document.  Code Components extracted from this document must   include Simplified BSD License text as described in Section 4.e of   the Trust Legal Provisions and are provided without warranty as   described in the Simplified BSD License.Reschke & Kunze               Informational                     [Page 1]

RFC 5791RFC 2731 Is Obsolete             February 20101.  Introduction   [RFC2731] defines "Encoding Dublin Core Metadata in HTML".  Newer   specifications published by the Dublin Core Metadata Initiative   (http://dublincore.org/) over the last decade, in particular   "Expressing Dublin Core metadata using HTML/XHTML meta and link   elements" ([DC-HTML]), have obsoleted this work.      Note: Implementers ofRFC 2731 should note that DC-HTML introduces      a new requirement with respect to the use of the "head" element's      "profile" attribute.2.  Security Considerations   This document is of administrative nature only and therefore there   are no security relations related to it.3.  Normative References   [DC-HTML]  Johnston, P. and A. Powell, "Expressing Dublin Core              metadata using HTML/XHTML meta and link elements", Dublin              Core Metadata Initiative , August 2008,              <http://dublincore.org/documents/2008/08/04/dc-html/>.   [RFC2731]  Kunze, J., "Encoding Dublin Core Metadata in HTML",RFC 2731, December 1999.Authors' Addresses   Julian F. Reschke   greenbytes GmbH   Hafenweg 16   Muenster, NW  48155   Germany   EMail: julian.reschke@greenbytes.de   URI:http://greenbytes.de/tech/webdav/   John A. Kunze   University of California   Office of the President   415 20th Street, #406   Oakland, CA  94612-3550   U.S.A.   EMail: jak@ucop.eduReschke & Kunze               Informational                     [Page 2]