A Uniform Resource Name (URN) Namespace for the TV-Anytime Forum
RFC 4195

Document Type RFC - Informational (October 2005; No errata)
Was draft-kameyama-tv-anytime-urn (individual in app area)
Author Wataru KAMEYAMA 
Last updated 2013-03-02
Stream IETF
Formats plain text html pdf htmlized bibtex
Stream WG state (None)
Document shepherd No shepherd assigned
IESG IESG state RFC 4195 (Informational)
Consensus Boilerplate Unknown
Telechat date
Responsible AD Ted Hardie
Send notices to (None)
Network Working Group                                        W. Kameyama
Request for Comments: 4195                       GITS, Waseda University
Category: Informational                                     October 2005

    A Uniform Resource Name (URN) Namespace for the TV-Anytime Forum

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 (2005).


   This document describes a Uniform Resource Name (URN) namespace that
   is engineered by the TV-Anytime Forum for naming persistent resources
   published by the TV-Anytime Forum including the TV-Anytime Forum
   Standards, XML (Extensible Markup Language) Document Type
   Definitions, XML Schemas, Namespaces, and other documents.

1.  Introduction

   The TV-Anytime Forum produces many kinds of documents (i.e.,
   specifications, working documents, and schemas) that are currently
   being considered for adoption by many standardization bodies such as
   ETSI (European Telecommunication Standardization Institute), DVB
   (Digital Video Broadcasting), ARIB (Association of Radio Industries
   and Businesses), and ATSC (Advance Television Systems Committee).

   The TV-Anytime Forum wishes to provide global, distributed,
   persistent, location-independent names for these resources.

Kameyama                     Informational                      [Page 1]
RFC 4195        A URN Namespace for the TV-Anytime Forum    October 2005

2.  Specification Template

   Namespace ID:


   Registration information:

      Registration Version Number: 1
      Registration Date: 2005-1-6

   Declared registrant of the namespace:

      Name:        Wataru KAMEYAMA
      Title:       Vice Chairman and Secretary, The TV-Anytime Forum
      Affiliation: Graduate School of Global Information
                   and Telecommunication Studies, Waseda University
      Address:     1011 Okuboyama, Nishi-tomida, Honjo-shi, Saitama
                   367-0035, JAPAN
      Phone:       +81 495 24 6052
      Email:       wataru@waseda.jp

   Declaration of structure:

      The Namespace Specific String (NSS) of all URNs assigned by the
      TV-Anytime Forum will have the following hierarchical structure:


      where the "category" is a US-ASCII string that conforms to URN
      syntax requirements ([RFC2141]), and "{string}" is a string that
      confirms to URN syntax requirements ([RFC2141]).

   Relevant ancillary documentation:

      The TV-Anytime Forum specifications have been publicly available
      at all stages during their development from
      "ftp://tva:tva@ftp.bbc.co.uk/Specifications/".  The final
      specifications are also available as formal ETSI (European
      Telecommunication Standardization Institute) technical
      specification documents, ETSI TS 102 822 series.

   Identifier uniqueness considerations:

      The TV-Anytime Forum shall establish unique identifiers as

Kameyama                     Informational                      [Page 2]
RFC 4195        A URN Namespace for the TV-Anytime Forum    October 2005

      Uniqueness is guaranteed as long as the assigned "{category}" is
      never reassigned for other categories.  The TV-Anytime Forum is
      responsible for this.

   Identifier persistence considerations:

      The TV-Anytime Forum 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 at the level of "category"s, and persistence
      of category assignment.

   Process of identifier assignment:

      All the assignments of identifiers are fully controlled and
      managed by the TV-Anytime Forum.

   Process of identifier resolution:

      The namespace is not listed with an RDS; this is not relevant.

   Rules for Lexical Equivalence:

      The "{category}" is case-insensitive.  Thus, the portion of the


      is case-insensitive for matches.  The remainder of the identifier
      shall be considered case-sensitive; hence, URNs are only lexically
      equivalent if they are also lexically identical in the remaining
      {string} field.

   Conformance with URN Syntax:

      No special considerations.

   Validation mechanism:

      Validation shall be done by a syntax grammar corresponding to each



Kameyama                     Informational                      [Page 3]
RFC 4195        A URN Namespace for the TV-Anytime Forum    October 2005

3.  Examples

   The following examples are not guaranteed to be real.  They are
   provided for pedagogical reasons only.

Show full document text