A Uniform Resource Name (URN) Namespace for the Motion Picture Experts Group (MPEG)
RFC 3614
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RFC - Informational
(September 2003; No errata)
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2013-03-02
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ISE
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plain text
pdf
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bibtex
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(None)
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No shepherd assigned
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IESG |
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RFC 3614 (Informational)
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Responsible AD |
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Ted Hardie
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Send notices to |
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<jaysmith@us.oracle.com>
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Network Working Group J. Smith
Request for Comments: 3614 IBM T. J. Watson Research Center
Category: Informational September 2003
A Uniform Resource Name (URN) Namespace for the
Motion Picture Experts Group (MPEG)
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 (2003). All Rights Reserved.
Abstract
This document describes a Uniform Resource Name (URN) namespace for
the Motion Picture Experts Group (MPEG) for naming persistent
resources as part of the MPEG standards. Example resources include
technical documents and specifications, eXtensible Markup Language
(XML) Schemas, classification schemes, XML Document Type Definitions
(DTDs), namespaces, style sheets, media assets, and other types of
resources produced or managed by MPEG.
1. Introduction
MPEG is a working group of the International Organization for
Standardization (ISO) and International Engineering Consortium (IEC)
in charge of the development of standards for coded representation of
digital audio and video. MPEG has produced MPEG-1, the standard on
which such products as Video CD and MP3 are based, MPEG-2, the
standard on which such products as Digital Television set top boxes
and DVD are based, MPEG-4, the standard for multimedia for the fixed
and mobile web, and MPEG-7, "Multimedia Content Description
Interface", the standard for description and search of audio and
visual content. Work on MPEG-21, "Multimedia Framework" is currently
underway.
MPEG would like to assign unique, permanent, location-independent
names based on URNs for some resources it produces or manages.
This namespace specification is for a formal namespace.
Smith Informational [Page 1]
RFC 3614 URN Namespace for MPEG September 2003
2. Specification Template
Namespace ID:
"mpeg"
Registration Information:
Version: 1
Date: 2001-11-20
Declared registrant of the namespace:
Name: John R. Smith
Title: Chair, MPEG MDS Subgroup
Affiliation: IBM T. J. Watson Research Center
Address: 30 Saw Mill River Road
Hawthorne, NY 10532 USA
Phone: +1 (914) 784-7320
Email: jrsmith@watson.ibm.com
Declaration of structure:
URNs assigned by MPEG will have the following hierarchical
structure based on the organizational structure of the MPEG
standards:
urn:mpeg:{standard name}:{assigned US-ASCII string}
where "{standard name}" is a US-ASCII string that conforms to URN
Syntax requirements ([RFC2141]) and corresponds to the name of an
MPEG standard (such as "mpeg1", "mpeg2", "mpeg4", "mpeg7",
"mpeg21", and
"{assigned US-ASCII string}" is a US-ASCII string that conforms to
URN Syntax requirements ([RFC2141]).
The individual URNs shall be assigned by MPEG through the process
of development of MPEG standards.
Relevant ancillary documentation:
None
Identifier uniqueness considerations:
MPEG shall establish unique identifiers as appropriate.
Smith Informational [Page 2]
RFC 3614 URN Namespace for MPEG September 2003
Uniqueness is guaranteed as long as the assigned string is never
reassigned for a given standard name and that the standard name is
never reassigned.
Identifier persistence considerations:
MPEG is committed to maintaining the accessibility and persistence
of all resources that are officially assigned URNs by the
organization.
Persistence of identifiers is dependent upon suitable delegation
of resolution at the level of "standard name"(s), and persistence
of standard name assignment.
Process of identifier assignment:
Assignment is limited to the owner and those authorities that are
specifically designated by the owner. MPEG may designate portions
of its namespace for assignment by other parties.
Process of identifier resolution:
The owner will develop and maintain "URN catalogs" that map all
assigned URNs to Uniform Resource Locators (URLs) specifically to
enable Web-based resolution of named resources. In the future an
interactive online resolution system may be developed to automate
this process.
The owner will authorize additional resolution services as
appropriate.
Rules for Lexical Equivalence:
The "standard name" is case-insensitive. Thus, the portion of the
URN:
urn:mpeg:{standard name}:
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