URNbis J. Klensin
Internet-Draft
Obsoletes: 3044, 3187 (if approved) J. Hakala
Intended status: Standards Track The National Library of Finland
Expires: August 20, 2015 February 16, 2015
Uniform Resource Name (URN) Namespace Registration Transition
draft-ietf-urnbis-ns-reg-transition-04
Abstract
The original registration procedure for formal Uniform Resource Name
(URN) namespaces required IETF Consensus. That requirement
discouraged some registrations and increased the risk for problems
that could occur as a result. The requirements have now been changed
in [[RFC 2141bis]]. That document adopts a different model. This
document specifies IANA instructions to adapt selected existing
registrations to the new model. It also obsoletes some previous RFCs
to eliminate any ambiguity about the status of new templates and
updated registrations.
Status of This Memo
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provisions of BCP 78 and BCP 79.
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This Internet-Draft will expire on August 20, 2015.
Copyright Notice
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Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 2
2. Obsoleting Older Registration RFCs for ISSNs and ISBNs . . . 3
2.1. ISBN URN Changes . . . . . . . . . . . . . . . . . . . . 4
2.2. ISSN URN Changes . . . . . . . . . . . . . . . . . . . . 4
3. Other existing URN registrations and RFCs . . . . . . . . . . 4
4. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 5
5. Security Considerations . . . . . . . . . . . . . . . . . . . 5
6. Acknowledgements . . . . . . . . . . . . . . . . . . . . . . 5
7. Contributors . . . . . . . . . . . . . . . . . . . . . . . . 5
8. References . . . . . . . . . . . . . . . . . . . . . . . . . 6
8.1. Normative References . . . . . . . . . . . . . . . . . . 6
8.2. Informative References . . . . . . . . . . . . . . . . . 6
Appendix A. Change Log . . . . . . . . . . . . . . . . . . . . . 7
A.1. Changes from version -00 to -01 . . . . . . . . . . . . . 7
A.2. Changes from version -01 to -02 . . . . . . . . . . . . . 7
A.3. Changes from version -02 to -03 . . . . . . . . . . . . . 7
A.4. Changes from version -03 to -04 . . . . . . . . . . . . . 7
Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . 7
1. Introduction
[[CREF1: RFC Editor: Please note that mentions of "[[RFC 2141bis]]"
in this I-D are defined as an Entity in the XML with the brackets
providing extra emphasis. Before publication, they should be
corrected, and the brackets removed, to show the actual RFC number.]]
[[CREF2: Note in draft: This document has been written in RFC form,
i.e., assuming that it and 2141bis have been approved. That style of
writing assumes that RFC 3406 and the rules it specified are already
obsolete. It may be a bit awkward while the I-D is being evaluated
by the WG and the IETF, but lowers the risk for errors or other
surprises during the RFC editing process.]]
As a part of the initial development of the Uniform Resource Name
(URN) system in the late 1990s, the IETF URN working group agreed
that it was important to demonstrate that the URN syntax can
accommodate existing identifier systems. RFC 2288 [RFC2288]
investigated the feasibility of using three identifiers (ISBN, ISSN
and SICI) as URNs, with positive results; however, it did not
formally register corresponding URN namespaces. This was in part due
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to the still evolving process to formalize criteria for namespace
definition documents and registration, consolidated later in the IETF
into successive Namespace Definition Mechanism documents [RFC2611]
[RFC3406].
URN Namespaces have subsequently been registered for NBN (National
Bibliography Number) [RFC3188], ISBN (International Standard Book
Number) [RFC3187], and ISSN (International Standard Serial Number)
[RFC3044].
The predecessor registration procedure for Uniform Resource Name
(URN) namespaces [RFC3406] required IETF Consensus for formal
namespaces. That requirement discouraged some registrations and
increased the risk for problems, including use of names without
registration ("squatting"), that could occur as a result. Those
potential problems included the possibility of the same name being
used to identify different namespaces with different rules. The
requirements have now been changed [RFC2141bis] to adopt a different
model that focuses more on encouraging registration of all namespaces
that follow the formal namespace syntax, with as much information
collected as possible consistent with that goal. This document
specifies IANA instructions to adapt selected existing registrations
to the new model and obsoletes the separate RFCs that specify the
namespaces for International Standard Serial Numbers (ISSNs)
[RFC3044] and International Standard Book Numbers (ISBNs) [RFC3187]
to eliminate any ambiguity about the status of new templates and
updated registrations.
An updated version of the specification for the namespace for
National Bibliography Numbers (NBNs) [RFC3188] will be issued
separately. NBN is not a formal international standard and RFC 3188
is the only formal document which specifies its scope. The intention
is to modernize the existing namespace registration so that it
specifies the identifier and provides examples of its use, while the
actual namespace registration will be done according to the new
practice.
2. Obsoleting Older Registration RFCs for ISSNs and ISBNs
The existing RFCs that describe URN namespaces for ISSNs (RFC 3044)
and ISBNs (RFC 3187) should be identified as "Historic" after this
document is approved and immediately after the new registration
templates for those namespaces are submitted and incorporated into
the URN Namespace registry by IANA.
[[CREF3: Note in draft: The more information that can be supplied in
the template or references from it, the better. But, if there is
information in the now-expired Internet-Drafts (draft-ietf-urnbis-
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rfc3187bis-isbn-urn, draft-ietf-urnbis-rfc3044bis-issn-urn) that
should be captured somewhere and that doesn't fit naturally in the
template, the discussion below is probably a reasonable place to put
it.]]
[[CREF4: Similarly, if special transition discussions are needed for
other URN namespaces registered prior to the intended transition,
this document might be a place to discuss them if they are not too
complicated (if they are complicated, they probably deserve their own
documents).]]
The updated templates reflect not only new template formats but
substantive changes to the definitions of the namespaces. The
changes are summarized in the subsections that follow.
For both ISSN and ISBN URNs, it is intended that the registrations
track the evolution of ISO standardization without requiring
resubmission of the templates or other formal IETF or IANA
registration update approval procedures.
2.1. ISBN URN Changes
The revised ISBN namespace reflects the updated version of the ISO
Standard for ISBNs, ISO 2108:2005 [ISO-ISBN-b]. The namespace allows
for the use of both the ten character numbers described in RFC 3187
and the earlier ISO 2108:1992 [ISO-ISBN-a] (known as ISBN-10), as
well as the expanded ones specified in the revised and updated
standard (known as ISBN-13).
2.2. ISSN URN Changes
The ISSN namespace is also updated to reflect changes between the
ISSN Standard when RFC 3044 was written and the newest, 2007 version
[ISO-ISSN].
3. Other existing URN registrations and RFCs
The RFC Series and IANA Registry contain many URN definitions in
addition to those for which this document calls out explicit actions.
In general, those existing registrations are still appropriate but
omit some information called for in [[RFC 2141bis]]. Until and
unless those registrations are updated as provided for in [[RFC
2141bis]], the existing registration templates should be read as not
requiring or allowing any features that were not allowed and
specified by the earlier URN [RFC2141] and registration [RFC3406]
specifications.
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4. IANA Considerations
IANA is requested to update the registry entries for URN ISSN, ISBN,
and NRN namespaces to reflect the new, [[RFC 2141bis]]-complaint
templates as soon as they are available and to no longer reference
the now-historic RFCs. With respect to namespaces other than those
listed above, registrations and templates conforming to the newer
rules may be substituted for the older ones when they are available.
However, neither this document nor [[RFC 2141bis]] supercedes
existing registrations other than those listed above. Therefore,
IANA needs to be prepared to maintain a registry whose contents
reflect old-style templates for some namespaces and the newer ones
for others.
IANA should also note that the portions of the registrations that
point to ISO Standards are intended to identify current versions
(which may change) rather than only the versions that are active at
the time this document is approved (see Section 2).
5. Security Considerations
While particular URN namespaces and their registrations might
conceivably have security implications, this specification merely
specifies a transition of a pair of registration procedures and does
not have such implications. The security implications associated
with particular namespaces are expected to be listed in registration
templates as specified in [[RFC 2141bis]].
6. Acknowledgements
This document draws heavily on discussions in the IETF URNbis Working
Group in the second and third quarters of 2013, particularly during
IETF 87 in August 2013, and on informal discussions during the
plenary meeting of ISO TC 46 in June 2013. The efforts of those who
participated in those discussions are greatly appreciated. It also
draws on internet-drafts that were developed to update the older
registrations before that approach was replaced by the new extended
template model. Those drafts were prepared by Pierre Godefroy, Juha
Hakala, Alfred Hoenes, and Maarit Huttunen.
The current draft benefits significantly from a careful reading and
suggestions for editorial changes by Peter Saint-Andre.
7. Contributors
Alfred Hoenes was the editor and co-author of two of the documents
from which this one is, in part, derived. This document would not
have been possible without his contributions.
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8. References
8.1. Normative References
[RFC2141bis]
Saint-Andre, P. and J. Klensin, "Uniform Resource Name
(URN) Syntax", February 2015,
<https://datatracker.ietf.org/doc/draft-ietf-urnbis-
rfc2141bis-urn/>.
8.2. Informative References
[ISO-ISBN-a]
ISO, "Information and documentation - The International
Standard Book Number (ISBN)", ISO 2180:1992, 1992.
[ISO-ISBN-b]
ISO, "Information and documentation - The International
Standard Book Number (ISBN)", ISO 2180:2005, 2005.
[ISO-ISSN]
ISO, "Information and documentation - International
standard serial number (ISSN)", ISO 3297:2007, 2007.
[RFC2141] Moats, R., "URN Syntax", RFC 2141, May 1997.
[RFC2288] Lynch, C., Preston, C., and R. Jr, "Using Existing
Bibliographic Identifiers as Uniform Resource Names", RFC
2288, February 1998.
[RFC2611] Daigle, L., van Gulik, D., Iannella, R., and P. Faltstrom,
"URN Namespace Definition Mechanisms", BCP 33, RFC 2611,
June 1999.
[RFC3044] Rozenfeld, S., "Using The ISSN (International Serial
Standard Number) as URN (Uniform Resource Names) within an
ISSN-URN Namespace", RFC 3044, January 2001.
[RFC3187] Hakala, J. and H. Walravens, "Using International Standard
Book Numbers as Uniform Resource Names", RFC 3187, October
2001.
[RFC3188] Hakala, J., "Using National Bibliography Numbers as
Uniform Resource Names", RFC 3188, October 2001.
[RFC3406] Daigle, L., van Gulik, D., Iannella, R., and P. Faltstrom,
"Uniform Resource Names (URN) Namespace Definition
Mechanisms", BCP 66, RFC 3406, October 2002.
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Appendix A. Change Log
A.1. Changes from version -00 to -01
o Modified the introduction to Section 2 and Section 4 to make it
clear that registry update procedures should not be required to
keep the registrations current with ISO Standard reaffirmations or
replacments.
o Many editorial changes to improve readability and clarity.
A.2. Changes from version -01 to -02
o Several small editorial changes and clarifications suggested by
Peter Saint-Andre.
o Updated acknowledgments.
A.3. Changes from version -02 to -03
o Updated to prevent expiration
o New text to allow for other already-registered namespaces and to
better explain relationships.
o Some small editorial changes.
A.4. Changes from version -03 to -04
o Updated references and, where needed, discussion to point to the
new, consolidated, 2141bis rather than to the formerly separate
and now obsolete 3406bis.
o Some small editorial changes.
Authors' Addresses
John C Klensin
1770 Massachusetts Ave, Ste 322
Cambridge, MA 02140
USA
Phone: +1 617 245 1457
Email: john-ietf@jck.com
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Juha Hakala
The National Library of Finland
P.O. Box 15, Helsinki University
Helsinki, MA FIN-00014
Finland
Email: juha.hakala@helsinki.fi
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