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Versions: 00 01 02 03 04 05 RFC 7284

Network Working Group                                       M. Lanthaler
Internet-Draft                                          January 21, 2014
Intended status: Informational
Expires: July 25, 2014


                        The Profile URI Registry
                  draft-lanthaler-profile-registry-05

Abstract

   This document defines a registry for profile URIs to be used in
   specifications standardizing profiles.

Status of this Memo

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   This Internet-Draft will expire on July 25, 2014.

Copyright Notice

   Copyright (c) 2014 IETF Trust and the persons identified as the
   document authors.  All rights reserved.

   This document is subject to BCP 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
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   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.






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Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . . . 3
   2.  Registration Process  . . . . . . . . . . . . . . . . . . . . . 3
   3.  Example Registration Request  . . . . . . . . . . . . . . . . . 3
   4.  IANA Considerations . . . . . . . . . . . . . . . . . . . . . . 4
     4.1.  Initial Registry Contents . . . . . . . . . . . . . . . . . 4
   5.  Security Considerations . . . . . . . . . . . . . . . . . . . . 5
   6.  Change Log  . . . . . . . . . . . . . . . . . . . . . . . . . . 5
     6.1.  From -04 to -05 . . . . . . . . . . . . . . . . . . . . . . 5
     6.2.  From -03 to -04 . . . . . . . . . . . . . . . . . . . . . . 5
     6.3.  From -02 to -03 . . . . . . . . . . . . . . . . . . . . . . 6
     6.4.  From -01 to -02 . . . . . . . . . . . . . . . . . . . . . . 6
     6.5.  From -00 to -01 . . . . . . . . . . . . . . . . . . . . . . 6
   7.  Acknowledgements  . . . . . . . . . . . . . . . . . . . . . . . 6
   8.  Normative References  . . . . . . . . . . . . . . . . . . . . . 6
   Author's Address  . . . . . . . . . . . . . . . . . . . . . . . . . 7


































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1.  Introduction

   Profiles, as defined by [RFC6906], can be used to signal support for
   additional semantics, such as constraints, conventions, extensions,
   or any other aspects that do not alter the basic media type
   semantics.  Profiles are identified by a URI and can thus be created
   without central coordination.

   Similarly to media types and link relation types it is, in some
   cases, beneficial to centrally manage profile URIs to ensure
   interoperability and decrease the coupling between clients and
   servers.  This allows the independent evolution of clients and
   servers as both are coupled to these central contracts instead of
   being coupled to each other.  Therefore, this document establishes an
   IANA registry for profile URIs.


2.  Registration Process

   All elements in this registry require a URI in order to be
   registered.  The meaning of the profile URI should be documented in a
   permanent and readily available public specification in sufficient
   detail so that interoperability between independent implementations
   is possible (see the registration template in Section 4).

   An exemplary registration request can be found in Section 3.


3.  Example Registration Request

   The following is an example registration request for the profile URI
   http://example.com/profiles/example.


   This is a request to IANA to please register the profile URI
   "http://example.com/profiles/example" in the Profile URI Registry
   according [this document].

   o  Profile URI: http://example.com/profiles/example

   o  Common Name: Exemplary Profile URI

   o  Description: An exemplary profile URI registration.

   o  Specification Document: [this document]






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4.  IANA Considerations

   This document establishes the Profile URI registry.  The registration
   procedure for new entries requires a request in the form of the
   following template and is "First Come First Served" per [RFC5226].
   Instructions for a registrant to request the registration of a
   profile URI are in Section 2.

   The underlying registry data (e.g., the XML file) must include
   Simplified BSD License text as described in Section 4.e of the Trust
   Legal Provisions (<http://trustee.ietf.org/license-info>).

   The registration template is:

   o  Profile URI: The URI that identifies the registered profile.

   o  Common Name: The name by which the profile being registered is
      generally known.

   o  Description: A relatively short description of the profile.  For
      simple profiles, this might be all the documentation that is
      required and there might be no reference document.  In those
      cases, be sure this description adequately documents the profile
      and is suitable for interoperable implementation.

   o  Specification Document: Reference to the document that specifies
      the URI, preferably including a URI that can be used to retrieve a
      copy of the document.  An indication of the relevant sections may
      also be included.  This is recommended, but can be left blank if
      the "Description" field provides sufficient documentation.

   o  Notes: [optional]

4.1.  Initial Registry Contents

   The Profile URI registry's initial contents are:

   o  Profile URI: urn:example:profile-uri
   o  Common Name: Exemplary Profile
   o  Description: A profile to be used in examples.
   o  Specification Document: [this document]

   o  Profile URI: http://dublincore.org/documents/2008/08/04/dc-html/
   o  Common Name: Dublin Core HTML meta data profile
   o  Description: A set of conventions by which a Dublin Core metadata
      description set can be can be represented within an (X)HTML Web
      page using (X)HTML elements and attributes.




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   o  Specification Document: [DC-HTML]



   o  Profile URI: http://www.w3.org/ns/json-ld#expanded
   o  Common Name: Expanded JSON-LD
   o  Description: A profile URI to request or signal expanded JSON-LD
      document form.
   o  Specification Document: [JSON-LD]

   o  Profile URI: http://www.w3.org/ns/json-ld#compacted
   o  Common Name: Compacted JSON-LD
   o  Description: A profile URI to request or signal compacted JSON-LD
      document form.
   o  Specification Document: [JSON-LD]

   o  Profile URI: http://www.w3.org/ns/json-ld#flattened
   o  Common Name: Flattened JSON-LD
   o  Description: A profile URI to request or signal flattened JSON-LD
      document form.
   o  Specification Document: [JSON-LD]


5.  Security Considerations

   There are no additional security considerations beyond those already
   inherent to using URIs.  Security considerations for URIs in general
   can be found in [RFC3986].


6.  Change Log

   Note to RFC Editor: Please remove this section before publication.

6.1.  From -04 to -05

   o  Change registration process from "Specification Required" to
      "First Come First Served".

   o  Update JSON-LD reference.

   o  Update acknowledgements.

6.2.  From -03 to -04

   o  Change title from "The IETF Profile URI Registry" to just "The
      Profile URI Registry".




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   o  Update JSON-LD reference.

6.3.  From -02 to -03

   o  Seed registry with the profile URIs defined in [DC-HTML] and
      [JSON-LD].

6.4.  From -01 to -02

   o  Do not establish a new IETF URN Sub-namespace anymore.

6.5.  From -00 to -01

   o  Use HTTP URI instead of URN in example registration request to
      make it clearer that not only URNs can be registered.

   o  Move security considerations to the end.


7.  Acknowledgements

   Thanks to Dave Cridland, Barry Leiba, and Nevil Brownlee for valuable
   comments and suggestions.


8.  Normative References

   [DC-HTML]  Johnston, P. and A. Powell, "Expressing Dublin Core
              metadata using HTML/XHTML meta and link elements", Dublin
              Core Metadata Initiative Recommendation, August 2008,
              <http://dublincore.org/documents/2008/08/04/dc-html/>.

   [JSON-LD]  Sporny, M., Kellogg, G., and M. Lanthaler, "JSON-LD 1.0",
              World Wide Web Consortium Recommendation, January 2014,
              <http://www.w3.org/TR/json-ld/>.

   [RFC3986]  Berners-Lee, T., Fielding, R., and L. Masinter, "Uniform
              Resource Identifier (URI): Generic Syntax", STD 66,
              RFC 3986, January 2005.

   [RFC5226]  Narten, T. and H. Alvestrand, "Guidelines for Writing an
              IANA Considerations Section in RFCs", BCP 26, RFC 5226,
              May 2008.

   [RFC6906]  Wilde, E., "The 'profile' Link Relation Type", RFC 6906,
              March 2013.





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Author's Address

   Markus Lanthaler

   Email: mail@markus-lanthaler.com
   URI:   http://www.markus-lanthaler.com/













































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