vcarddav D. Cauchie
Internet-Draft France Telecom - Orange
Intended status: Standards Track B. Leiba
Expires: November 12, 2012 K. Li
Huawei Technologies
May 11, 2012
vCard Format extension : represent vCard extensions defined by the Open
Mobile Alliance (OMA) Converged Address Book (CAB) group
draft-ietf-vcarddav-oma-cab-extensions-02
Abstract
This document defines extensions to the vCard data format for
representing and exchanging certain contact information. The
properties covered here have been defined by the Open Mobile Alliance
Converged Address Book group, in order to synchronize, using OMA Data
Synchronization, contact fields that were not already defined in the
base vCard 4.0 specification.
Status of this Memo
This Internet-Draft is submitted in full conformance with the
provisions of BCP 78 and BCP 79.
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This Internet-Draft will expire on November 12, 2012.
Copyright Notice
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document authors. All rights reserved.
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to this document. Code Components extracted from this document must
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Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 3
1.1. A Brief Introduction to the Converged Address Book . . . . . 3
1.2. Terminology Used in This Document . . . . . . . . . . . . . 3
2. vCard Extensions : Properties . . . . . . . . . . . . . . . 4
2.1. Property : EXPERTISE . . . . . . . . . . . . . . . . . . . . 4
2.2. Property : HOBBY . . . . . . . . . . . . . . . . . . . . . . 5
2.3. Property : INTEREST . . . . . . . . . . . . . . . . . . . . 6
2.4. Property : ORG-DIRECTORY . . . . . . . . . . . . . . . . . . 7
3. vCard extensions : Parameters . . . . . . . . . . . . . . . 8
3.1. Parameter : INDEX . . . . . . . . . . . . . . . . . . . . . 8
3.2. Parameter : LEVEL . . . . . . . . . . . . . . . . . . . . . 9
4. Security Considerations . . . . . . . . . . . . . . . . . . 10
5. IANA Considerations . . . . . . . . . . . . . . . . . . . . 10
6. Acknowledgments . . . . . . . . . . . . . . . . . . . . . . 11
7. Normative References . . . . . . . . . . . . . . . . . . . . 11
Authors' Addresses . . . . . . . . . . . . . . . . . . . . . 11
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1. Introduction
Synchronization of an Open Mobile Alliance Converged Address Book
[OMA-CAB], using Open Mobile Alliance Data Synchronization [OMA-DS],
commonly uses vCard as an exchange format between the DS Server and
the DS Client. In order to properly perform synchronization of an
OMA-CAB, the CAB specification defines some CAB contact fields not
already defined in the vCard base specification. This document re-
uses the definitions found in the OMA-CAB specification and describes
them as vCard extensions. The following sections define the
necessary Properties and Parameters.
1.1. A Brief Introduction to the Converged Address Book
The Converged Address Book (CAB) Enabler provides consistent
mechanisms to manage contact information both in user-facing
applications and in support of network-facing activities. At the
core of this enabler is a network-based contact repository in which a
user can store contact information. That information can be
retrieved by any CAB-enabled device. The network-based repository is
also able to provide specific contact information to other users and
to keep their copies up to date whenever the information is changed.
The CAB Enabler provides synchronization of the contact information
available in the user device(s) with the network-based contact
repository.
The CAB Enabler also manages the distribution of a user's own contact
information. In essence, a user fills out a Personal Contact Card,
which includes all the information a user wishes to store about him
or herself.
Because systems that are supporting the CAB Enabler are likely
supporting multiple users, the CAB Enabler also defines a search
paradigm that permits other users to query those systems to locate
information about the available users.
The CAB Enabler supports many different types of information. It,
therefore, has a data model that is flexible and extensible. It
manages traditional types of contact information (such as name,
address, email, phone number, mobile number) as well as new types of
information (such as websites, blogs, presence subscription
references).
1.2. Terminology Used in This Document
Syntax specifications shown here use the augmented Backus-Naur Form
(ABNF) as described in [RFC5234], and are specified as in the base
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vcard specification [RFC6350].
2. vCard Extensions : Properties
The following sections define the CAB Properties.
Note:
Some string-value vCard properties are defined herein for which no
specific list of allowed strings is specified. For those properties,
it is intended that de-facto taxonomies might develop. One vCard
can, for example, specify a hobby of "philately", while another uses
"stamp collecting", and a third has "old postage stamps". Usage, not
specification, may lead to a preference over time for a single term.
In general, these are meant to be understood by humans, rather than
to be used for automated categorization that might require standard
terms and registries.
2.1. Property : EXPERTISE
Namespace:
Property name: EXPERTISE
Purpose: To specify a field of expertise for the object that the
vCard refers to.
Value type: A single text value.
Cardinality: *
Property parameters: LEVEL (possible values : "beginner", "average",
"expert"), INDEX
Description: This is intended to be a free-form naming of fields of
expertise, meant for human consumption, and no specific expertise
fields are defined. See the note at the beginning of Section 2.
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Format definition:
EXPERTISE-param = LEVEL-param / INDEX-param / language-param /
pref-param / altid-param / type-param / any-param
EXPERTISE-value = text
Examples:
EXPERTISE;LEVEL=beginner;INDEX=2:chinese literature
EXPERTISE;INDEX=1;LEVEL=expert:chemistry
2.2. Property : HOBBY
Namespace:
Property name: HOBBY
Purpose: To specify the hobbies of the object that the vCard refers
to.
Value type: A single text value.
Cardinality: *
Property parameters: LEVEL (possible values : "high", "medium",
"low"), INDEX
Description: This is intended to be a free-form naming of hobbies,
meant for human consumption, and no specific hobbies are defined.
See the note at the beginning of Section 2.
A hobby, as opposed to an interest (see Section 2.3) is an
activity that one actively engages in for entertainment,
intellectual stimulation, creative expression, or the like.
* "Art" might be a hobby if one actively sculpts or paints.
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* "Tennis" might be a hobby if one enjoys playing, rather than
just watching matches.
Format definition:
HOBBY-param = LEVEL-param / INDEX-param / language-param / pref-
param / altid-param / type-param / any-param
HOBBY-value = text
Examples:
HOBBY;INDEX=1;LEVEL=high:reading
HOBBY;INDEX=2;LEVEL=high:sewing
2.3. Property : INTEREST
Namespace:
Property name: INTEREST
Purpose: To specify the interest(s) of the object that the vCard
refers to.
Value type: A single text value
Cardinality: *
Property parameters: LEVEL (possible values : "high", "medium",
"low"), INDEX
Description: This is intended to be a free-form naming of interests,
meant for human consumption, and no specific interests are
defined. See the note at the beginning of Section 2.
An interest, as opposed to a hobby (see Section 2.2) is an
activity or topic that one finds interesting, but doesn't
necessarily actively engage in.
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* "Art" might be an interest if one likes looking at art, but
doesn't create art.
* "Tennis" might be an interest if one enjoys watching matches,
but doesn't play.
Format definition:
INTEREST-param = LEVEL-param / INDEX-param / language-param /
pref-param / altid-param / type-param / any-param
INTEREST-value = text
Examples:
INTEREST;INDEX=1;LEVEL=medium:r&b music
INTEREST;INDEX=2;LEVEL=high:rock'n roll music
2.4. Property : ORG-DIRECTORY
Namespace:
Property name: ORG-DIRECTORY
Purpose: To specify a directory of an organization the vCard's
entity belongs to.
Value type: A single URI value.
Cardinality: *
Property parameters: PREF, INDEX
Description: This is intended to be a URI that can be used to do an
organization-directory lookup. Presumably, the entity the vCard
represents would be found in the directory, though that isn't
required. This might be used to make it easier to find someone's
co-workers, management chain, and so on, in a company or
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organizational directory.
How the lookup is done depends upon the URI scheme, and no
attempt is made here to specify details of the lookup mechanism.
An HTTP URI might, for example, lead to a web form that's
intended for manual lookup in a browser -- thus, this URI might
or might not be useable for automated lookup or searching.
Format definition:
ORG-DIRECTORY-param = pref-param / INDEX-param / language-param
/ pid-param / pref-param / altid-param / type-param /
any-param
ORG-DIRECTORY-value= uri
Examples:
ORG-DIRECTORY;INDEX=1:http://directory.mycompany.example.com
ORG-DIRECTORY;PREF=1:ldap://ldap.tech.example/
o=Example%20Tech,ou=Engineering
3. vCard extensions : Parameters
The following sections define Parameters used within Properties
definitions.
3.1. Parameter : INDEX
Namespace:
Parameter name: INDEX
Purpose: Used in a multi-valued property to indicate the position of
this value within the set of values.
Description: When a property is multi-valued, INDEX can be used to
indicate an ordering or sequence of the values. INDEX values
MUST be strictly positive. Zero is not allowed.
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Format definition:
INDEX-param = "INDEX=" INDEX-value
INDEX-value = integer
Examples:
ORG-URI;INDEX=1:http://mycompany.example1.com
ORG-URI;PREF=1;INDEX=2:http://mycompany.example2.com
3.2. Parameter : LEVEL
Namespace:
Parameter name: LEVEL
Purpose: Used to indicate a level of expertise, hobby or interest
attained by the object the vCard represents.
Description: Allowable values:
* "beginner", "average", "expert" when used with EXPERTISE
* "high", "medium", "low" when used with HOBBY or INTEREST
Format definition:
LEVEL-param = "LEVEL=" LEVEL-value
LEVEL-value = "beginner" / "average" / "expert" / "high" /
"medium" / "low"
Examples:
EXPERTISE;LEVEL=beginner:chinese literature
HOBBY;LEVEL=high:reading
INTEREST;LEVEL=medium:r&b music
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4. Security Considerations
This document presents no security considerations beyond those in
section 9 of the base vcard specification [RFC6350].
5. IANA Considerations
IANA is requested to add the following entries to the vCard
Properties registry, defined in [RFC6350] section 10.3.1.
+-------+---------------------------+-------------------+
| Name | | |
| space | Property | Reference |
+-------+---------------------------+-------------------+
| | EXPERTISE | RFCXXXX, sec 2.1 |
| | HOBBY | RFCXXXX, sec 2.2 |
| | INTEREST | RFCXXXX, sec 2.3 |
| | ORG-URI | RFCXXXX, sec 2.4 |
+-------+---------------------------+-------------------+
IANA is requested to add the following entries to the vCard
Parameters registry, defined in [RFC6350] section 10.3.2.
+-------+---------------------------+-------------------+
| Name | | |
| space | Parameter | Reference |
+-------+---------------------------+-------------------+
| | INDEX | RFCXXXX, sec 3.1 |
| | LEVEL | RFCXXXX, sec 3.2 |
+-------+---------------------------+-------------------+
IANA is requested to add the following entries to the vCard Values
registry, defined in [RFC6350] section 10.3.4.
+-----------+-----------+---------------+-------------------+
| Property | Parameter | Value | Reference |
+-----------+-----------+---------------+-------------------+
| EXPERTISE | LEVEL | beginner | RFCXXXX, sec 3.2 |
| EXPERTISE | LEVEL | average | RFCXXXX, sec 3.2 |
| EXPERTISE | LEVEL | expert | RFCXXXX, sec 3.2 |
| HOBBY | LEVEL | high | RFCXXXX, sec 3.2 |
| HOBBY | LEVEL | medium | RFCXXXX, sec 3.2 |
| HOBBY | LEVEL | low | RFCXXXX, sec 3.2 |
| INTEREST | LEVEL | high | RFCXXXX, sec 3.2 |
| INTEREST | LEVEL | medium | RFCXXXX, sec 3.2 |
| INTEREST | LEVEL | low | RFCXXXX, sec 3.2 |
+-----------+---------------------------+-------------------+
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6. Acknowledgments
Thanks to Simon Perreault, Peter Saint-Andre, Cyrus Daboo, and Chris
Newman for particularly thorough reviews, which led to a much cleaner
submission to the working group.
7. Normative References
[OMA-CAB] Open Mobile Alliance, "Converged Address Book (CAB)
Specification", October 2010, <http://
www.openmobilealliance.org/Technical/release_program/docs/
CopyrightClick.aspx?pck=CAB&file=V1_0-20101019-C/
OMA-TS-CAB-V1_0-20101019-C.pdf>.
Candidate Version 1.0, OMA-TS-CAB-V1_0-20101019-C
[OMA-DS] Open Mobile Alliance, "Data Synchronization Protocol",
March 2009, <http://www.openmobilealliance.org/Technical/
release_program/docs/
copyrightclick.aspx?pck=DS&file=V1_2_2-20090319-A/
OMA-TS-DS_Protocol-V1_2_2-20090319-A.pdf>.
Candidate Version 1.2.2, OMA-TS-DS_Protocol-V1_2_2-
20090319-A
[RFC5234] Crocker, D. and P. Overell, "Augmented BNF for Syntax
Specifications: ABNF", STD 68, RFC 5234, January 2008.
[RFC6350] Perreault, S., "vCard Format Specification", RFC 6350,
August 2011.
Authors' Addresses
Dany Cauchie
France Telecom - Orange
2 Avenue Pierre Marzin
Lannion 22307
France
Phone: +33 2 96 05 31 16
Email: dany.cauchie@orange.com
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Barry Leiba
Huawei Technologies
Phone: +1 646 827 0648
Email: barryleiba@computer.org
URI: http://internetmessagingtechnology.org/
Kepeng Li
Huawei Technologies
Phone: +86 755 28974289
Email: likepeng@huawei.com
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