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Keywords: nid, namespace identifier, omna, open mobile naming authority
Network Working Group D. Smith
Request for Comments: 4358 Open Mobile Alliance
Category: Informational January 2006
A Uniform Resource Name (URN) Namespace for
the Open Mobile Alliance (OMA)
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 (2006).
Abstract
This document describes the Namespace Identifier (NID) for Uniform
Resource Namespace (URN) resources published by the Open Mobile
Alliance (OMA). OMA defines and manages resources that utilize this
URN name model. Management activities for these and other resource
types are provided by the Open Mobile Naming Authority (OMNA).
Table of Contents
1. Introduction ....................................................2
2. URN Specification for "oma" NID .................................2
3. Examples ........................................................4
4. Namespace Considerations ........................................4
5. Community Considerations ........................................5
6. Security Considerations .........................................5
7. IANA Considerations .............................................5
8. Informative References ..........................................5
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1. Introduction
OMA is a specification development body developing technologies for
mobile devices. This activity is supported by a membership composed
of network operators, equipment vendors, content providers, and other
suppliers to the mobile market.
Some of the technologies being developed by OMA need XML namespaces
that are managed so that they are unique and persistent. To assure
that the uniqueness is absolute, the registration of a specific NID
for use by OMA was deemed appropriate. Therefore, a full and
complete registration will follow the namespace specification process
as defined in [RFC3406].
2. URN Specification for "oma" NID
Namespace ID:
The NID "oma" is requested.
Registration Information:
registration version number: 1
registration date: 2005-07-18
Declared registrant of the namespace:
Registering organization
Name: Open Mobile Alliance
Address: 4275 Executive Square
Suite 240s
La Jolla, CA 92037
Designated contact
Role: Technical Program Manager
Email: TPM@omaorg.org
Declaration of syntactic structure:
The Namespace Specific String (NSS) of all URNs that use the "oma"
NID will have the following structure:
urn:oma:{OMAresource}:{ResourceSpecificString}
where the "OMAresource" is a US-ASCII string that conforms to the
URN syntax requirements [RFC2141] and defines a specific class of
resource type. Each resource type has a specific labeling scheme
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that is covered by "ResourceSpecificString", which also conforms
to the naming requirements of [RFC2141].
OMA maintains a naming authority, the Open Mobile Naming Authority
(OMNA), that will manage the assignment of "OMAresources" and the
specific registration values assigned for each resource class.
Relevant ancillary documentation:
The Open Mobile Naming Authority (OMNA) provides information on
the registered resources and the registrations for each. More
information about OMNA and the registration activities and
procedures to be followed are available at:
http://www.openmobilealliance.org/tech/omna
Identifier uniqueness considerations:
The OMNA will manage resources using the "oma" NID and will be the
authority for managing the resources and subsequent strings
associated. In the associated procedures, OMNA will ensure the
uniqueness of the strings themselves or shall permit secondary
responsibility for management of well-defined sub-trees.
OMA may permit use of experimental type values that will not be
registered. As a consequence, multiple users may end up using the
same value for separate uses. As experimental usage is only
intended for testing purposes, this should not be a real issue.
Identifier persistence considerations:
OMNA will provide clear documentation of the registered uses of
the "oma" NID. This will be structured such that each OMAresource
will have a separate description and registration table.
The registration tables and information will be published and
maintained by OMNA on its web site.
Process of identifier assignment:
OMNA will provide procedures for registration of each type of
resource that it maintains. Each such resource may have three
types of registration activities:
1) Registered values associated with OMA specs or services
2) Registration of values or sub-trees to other entities
3) Name models for use in experimental purposes
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Process for identifier resolution:
The namespace is not listed with an RDS; this is not relevant.
Rules for Lexical Equivalence:
No special considerations; the rules for lexical equivalence of
[RFC2141] apply.
Conformance with URN Syntax:
No special considerations.
Validation mechanism:
None specified. URN assignment will be handled by procedures
implemented in support of OMNA activities.
Scope:
Global
3. Examples
The following examples are representative urns that could be assigned
by OMNA. They may not be the actual strings that would be assigned.
urn:oma:ac:oma-presence
Defines the urn to be used for the Application Characteristic
object definition for providing attributes to the Presence enabler
defined in OMA.
urn:oma:drms:org-foobar
Defines the urn associated with the Digital Rights Management
System object definition allocated to foobar, which is an external
organization that made request via OMNA for a drms urn.
4. Namespace Considerations
The Open Mobile Alliance is developing a variety of application and
service enablers. Some of these enablers require that supporting
information (e.g., data descriptions, attributes, etc.) be fully
specified. For proper operation, descriptions of the needed
supporting information must exist and be available in a unique,
reliable, and persistent manner. These dependencies provide the
basis of need for namespaces, in one form or another.
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As the Open Mobile Alliance work is ongoing and covers many technical
areas, the possibility of binding to various other namespace
repositories has been deemed impractical. Each object or
description, as defined in OMA, could possibly be related to multiple
different other namespaces, so further conflicts of association could
occur. Thus the intent is to utilize the Open Mobile Naming
Authority, operated by OMA, as the naming authority for OMA-defined
objects and descriptions.
5. Community Considerations
The objects and descriptions required for enablers produced by OMA
are generally available for use by other organizations. The Open
Mobile Naming Authority will provide access and support for name
requests by these organizations. This support can be enabled in a
timely and responsive fashion as new objects and descriptions are
produced. These will be enabled in a fashion similar to current OMNA
support.
6. Security Considerations
There are no additional security considerations other than those
normally associated with the use and resolution of URNs in general.
7. IANA Considerations
The requested NID has been entered into the IANA registry for URN
NIDs. The update can be found at:
http://www.iana.org/assignments/urn-namespaces and any associated
mirrors.
8. Informative References
[RFC2141] Moats, R., "URN Syntax", RFC 2141, May 1997.
[RFC3406] Daigle, L., van Gulik, D., Iannella, R., and P.
Faltstrom, "Uniform Resource Names (URN) Namespace
Definition Mechanisms", BCP 66, RFC 3406, October 2002.
Author's Address
Dwight Smith (Chair, Operations and Process Committee, OMA)
Motorola
5555 N Beach Street
Ft. Worth, TX 76137
EMail: dwight.smith@motorola.com
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Full Copyright Statement
Copyright (C) The Internet Society (2006).
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Acknowledgement
Funding for the RFC Editor function is provided by the IETF
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