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Internet Engineering Task Force (IETF) Request for Comments: 6474 Category: Standards Track ISSN: 2070-1721

K. Li B. Leiba Huawei Technologies December 2011

vCard Format Extensions: Place of Birth, Place and Date of Death Abstract The base vCard 4.0 specification defines a large number of properties, including date of birth. This specification adds three new properties to vCard 4.0: place of birth, place of death, and date of death. Status of This Memo This is an Internet Standards Track document. This document is a product of the Internet Engineering Task Force (IETF). It represents the consensus of the IETF community. It has received public review and has been approved for publication by the Internet Engineering Steering Group (IESG). Further information on Internet Standards is available in Section 2 of RFC 5741. Information about the current status of this document, any errata, and how to provide feedback on it may be obtained at http://www.rfc-editor.org/info/rfc6474. Copyright Notice Copyright (c) 2011 IETF Trust and the persons identified as the document authors. All rights reserved. This document is subject to BCP 78 and the IETF Trust's Legal Provisions Relating to IETF Documents (http://trustee.ietf.org/license-info) in effect on the date of publication of this document. Please review these documents carefully, as they describe your rights and restrictions with respect to this document. Code Components extracted from this document must include Simplified BSD License text as described in Section 4.e of the Trust Legal Provisions and are provided without warranty as described in the Simplified BSD License.

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Table of Contents 1. Introduction ....................................................2 1.1. Terminology Used in This Document ..........................2 2. Identification Property Extensions ..............................2 2.1. Property: BIRTHPLACE .......................................2 2.2. Property: DEATHPLACE .......................................3 2.3. Property: DEATHDATE ........................................4 3. Security Considerations .........................................5 4. IANA Considerations .............................................5 5. Acknowledgements ................................................5 6. Normative References ............................................5 1. Introduction The base vCard 4.0 specification [RFC6350] defines a large number of properties, including date of birth. This specification adds three new properties to vCard 4.0: place of birth, place of death, and date of death. 1.1. Terminology Used in This Document

The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT", "SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this document are to be interpreted as described in [RFC2119]. Syntax specifications shown here use the augmented Backus-Naur Form (ABNF) as described in [RFC5234], and are specified as in the base vCard specification [RFC6350]. 2. 2.1. Identification Property Extensions Property: BIRTHPLACE

Namespace: Property name: Purpose: BIRTHPLACE

To specify the place of birth of the object the vCard represents. A single text value (default) or a single URI value. *1 VALUE, LANGUAGE

Value type: Cardinality:

Property parameters:

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Description: Format definition: BIRTHPLACE-param = "VALUE=" ("text" / "uri") BIRTHPLACE-value = text / uri ; Value type and VALUE parameter MUST match. BIRTHPLACE-param =/ Examples: BIRTHPLACE:Babies'R'Us Hospital BIRTHPLACE;VALUE=uri:http://example.com/hospitals/babiesrus.vcf BIRTHPLACE;VALUE=uri:geo:46.769307,-71.283079 2.2. Property: DEATHPLACE altid-param / language-param / any-param

Namespace: Property name: Purpose: DEATHPLACE

To specify the place of death of the object the vCard represents. A single text value (default) or a single URI value. *1 VALUE, LANGUAGE

Value type: Cardinality:

Property parameters: Description: Format definition:

DEATHPLACE-param = "VALUE=" ("text" / "uri") DEATHPLACE-value = text / uri ; Value type and VALUE parameter MUST match. DEATHPLACE-param =/ Examples: DEATHPLACE:Aboard the Titanic\, near Newfoundland DEATHPLACE;VALUE=uri:http://example.com/ships/titanic.vcf DEATHPLACE;VALUE=uri:geo:41.731944,-49.945833 altid-param / language-param / any-param

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2.3.

Property: DEATHDATE

Namespace: Property name: Purpose: DEATHDATE

To specify the date of death of the object the vCard represents. The default is a single date-and-or-time value. also be reset to a single text value. *1 VALUE, CALSCALE, LANGUAGE It can

Value type:

Cardinality:

Property parameters:

CALSCALE can only be present when the value is a date-and-or-time value and actually contains a date or date-time. LANGUAGE can only be present when the value is text. Description: The presence of a DEATHDATE property indicates that the subject of the vCard is known to be dead. The absence of this property makes no statement one way or the other.

Format definition: DEATHDATE-param = DEATHDATE-param-date / DEATHDATE-param-text DEATHDATE-value = date-and-or-time / text ; Value type and VALUE parameter MUST match. DEATHDATE-param-date = "VALUE=date-and-or-time" / calscale-param ; calscale-param can only be present when DEATHDATE-value is ; date-and-or-time and actually contains a date or date-time. DEATHDATE-param-date = DEATHDATE-param =/ Examples: DEATHDATE:19960415 DEATHDATE:--0415 DEATHDATE;19531015T231000Z DEATHDATE;VALUE=text:circa 1800 "VALUE=text" / language-param

altid-param / any-param

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3.

Security Considerations The properties defined in this document present no security considerations beyond those in Section 9 of the base vCard specification [RFC6350].

4.

IANA Considerations IANA has added the following entries to the vCard Properties registry, defined in Section 10.3.1 of [RFC6350]. +-----------+--------------+------------------------+ | Namespace | Property | Reference | +-----------+--------------+------------------------+ | | BIRTHPLACE | [RFC6474], Section 2.1 | | | DEATHPLACE | [RFC6474], Section 2.2 | | | DEATHDATE | [RFC6474], Section 2.3 | +-----------+--------------+------------------------+

5.

Acknowledgements The authors of this document would like to thank Simon Perreault and Pete Resnick, the authors of a draft version of RFC 6350 whence the properties defined herein originated.

6.

Normative References [RFC2119] Bradner, S., "Key words for use in RFCs to Indicate Requirement Levels", BCP 14, RFC 2119, March 1997. Crocker, D., Ed., and P. Overell, "Augmented BNF for Syntax Specifications: ABNF", STD 68, RFC 5234, January 2008. Perreault, S., "vCard Format Specification", RFC 6350, August 2011.

[RFC5234]

[RFC6350]

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Authors' Addresses Kepeng Li Huawei Technologies Huawei Base, Bantian, Longgang District Shenzhen, Guangdong 518129 P.R. China Phone: +86-755-28974289 EMail: likepeng@huawei.com

Barry Leiba Huawei Technologies Phone: +1 646 827 0648 EMail: barryleiba@computer.org URI: http://internetmessagingtechnology.org/

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