A Uniform Resource Name (URN) Namespace for the International Press Telecommunications Council (IPTC)
RFC 3937

Document Type RFC - Informational (November 2004; No errata)
Was draft-steidl-iptc-urn (individual in app area)
Last updated 2013-03-02
Stream IETF
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Stream WG state (None)
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IESG IESG state RFC 3937 (Informational)
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Responsible AD Ted Hardie
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Network Working Group                                          M. Steidl
Request for Comments: 3937                                          IPTC
Category: Informational                                     October 2004

             A Uniform Resource Name (URN) Namespace for
       the International Press Telecommunications Council (IPTC)

Status of this Memo

   This memo provides information for the Internet community.  It does
   not specify an Internet standard of any kind.  Distribution of this
   memo is unlimited.

Copyright Notice

   Copyright (C) The Internet Society (2004).

Abstract

   This document describes a URN (Uniform Resource Name) namespace for
   identifying persistent resources published by the International Press
   Telecommunications Council (IPTC).  These resources include XML Data
   Type Definition files (DTD), XML Schema, Namespaces in XML, XSL
   stylesheets, other XML based document and documents of other data
   formats like PDF documents, Microsoft Office documents and others.

Steidl                       Informational                      [Page 1]
RFC 3937                 URN Namespace for IPTC             October 2004

Table of Contents

   1.  Introduction. . . . . . . . . . . . . . . . . . . . . . . . .   2
   2.  IANA URN Specification Template . . . . . . . . . . . . . . .   3
       2.1.  Namespace ID. . . . . . . . . . . . . . . . . . . . . .   3
       2.2.  Registration Information. . . . . . . . . . . . . . . .   3
       2.3.  Declaration of syntactic structure. . . . . . . . . . .   3
       2.4.  Relevant ancillary documentation. . . . . . . . . . . .   5
       2.5.  Identifier uniqueness considerations. . . . . . . . . .   5
       2.6.  Identifier persistence considerations . . . . . . . . .   5
       2.7.  Process of identifier assignment. . . . . . . . . . . .   5
       2.8.  Process for identifier resolution . . . . . . . . . . .   5
       2.9.  Rules for Lexical Equivalence . . . . . . . . . . . . .   5
       2.10. Conformance with URN Syntax . . . . . . . . . . . . . .   5
       2.11. Validation mechanism. . . . . . . . . . . . . . . . . .   5
       2.12. Scope . . . . . . . . . . . . . . . . . . . . . . . . .   5
   3.  Examples. . . . . . . . . . . . . . . . . . . . . . . . . . .   6
   4.  Namespace Considerations and Community Considerations . . . .   6
   5.  Security Considerations . . . . . . . . . . . . . . . . . . .   7
   6.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .   7
   7.  References. . . . . . . . . . . . . . . . . . . . . . . . . .   7
       7.1.  Normative References. . . . . . . . . . . . . . . . . .   7
       7.2.  Informative References. . . . . . . . . . . . . . . . .   7
   Author's Address. . . . . . . . . . . . . . . . . . . . . . . . .   8
   Full Copyright Statement. . . . . . . . . . . . . . . . . . . . .   9

1.  Introduction

   The International Press Telecommunications Council (IPTC) is a non-
   profit consortium of the world's major news agencies and news
   industry vendors.  It develops and maintains technical standards for
   the news business that are used by virtually every major news
   organization in the world.  IPTC was established in 1965.

   Since the 1990's IPTC's standardization work is based on open
   standards like first SGML, then the XML [W3CXML] family of standards,
   MIME, Unicode, and so on.

   As some of these standards require identification of resources IPTC
   was looking for a technology for globally unique, persistent and
   location-independent identifiers and decided to implement URNs as
   described in "URN Syntax" [RFC2141] for this reason.

   This namespace specification is for a formal namespace.

Steidl                       Informational                      [Page 2]
RFC 3937                 URN Namespace for IPTC             October 2004

2.  IANA URN Specification Template

2.1.  Namespace ID

   "iptc" requested.

2.2.  Registration Information

   Registration Version Number: 1
   Registration Date: 2003-11-11

      Declared registrant of the namespace:

   Registering organization:
      International Press Telecommunications Council IPTC
      Royal Albert House
      Sheet Street
      Windsor, Berkshire SL4 1BE
      www.iptc.org

   Designated contact person:
      Michael Steidl
      Managing Director
      mdirector@iptc.org

2.3.  Declaration of syntactic structure

   All URNs assigned by IPTC will have a Namespace Specific String (NSS)
   of the following hierarchical structure:

   At the top of the hierarchy are three branches:
   - "std"
   - "std-draft"
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