Presence Information Data Format (PIDF)
RFC 3863

Document Type RFC - Proposed Standard (August 2004; Errata)
Last updated 2013-03-02
Stream IETF
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Stream WG state (None)
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IESG IESG state RFC 3863 (Proposed Standard)
Telechat date
Responsible AD Ted Hardie
Send notices to <markday@cisco.com>, <derek@ihtfp.com>
Network Working Group                                          H. Sugano
Request for Comments: 3863                                   S. Fujimoto
Category: Standards Track                                        Fujitsu
                                                                G. Klyne
                                                            Nine by Nine
                                                              A. Bateman
                                                              VisionTech
                                                                 W. Carr
                                                                   Intel
                                                             J. Peterson
                                                                 NeuStar
                                                             August 2004

                Presence Information Data Format (PIDF)

Status of this Memo

   This document specifies an Internet standards track protocol for the
   Internet community, and requests discussion and suggestions for
   improvements.  Please refer to the current edition of the "Internet
   Official Protocol Standards" (STD 1) for the standardization state
   and status of this protocol.  Distribution of this memo is unlimited.

Copyright Notice

   Copyright (C) The Internet Society (2004).

Abstract

   This memo specifies the Common Profile for Presence (CPP) Presence
   Information Data Format (PIDF) as a common presence data format for
   CPP-compliant Presence protocols, and also defines a new media type
   "application/pidf+xml" to represent the XML MIME entity for PIDF.

Table of Content

   1.  Introduction . . . . . . . . . . . . . . . . . . . . . . . . .  2
       1.1.  Terminology and Conventions. . . . . . . . . . . . . . .  3
   2.  Design Decisions . . . . . . . . . . . . . . . . . . . . . . .  3
       2.1.  Minimal Model. . . . . . . . . . . . . . . . . . . . . .  3
       2.2.  Added Features . . . . . . . . . . . . . . . . . . . . .  4
       2.3.  XML Encoding Decision. . . . . . . . . . . . . . . . . .  5
   3.  Overview of Presence Information Data Format . . . . . . . . .  5
       3.1.  The 'application/pidf+xml' Content Type. . . . . . . . .  5
       3.2.  Presence Information Contents. . . . . . . . . . . . . .  5
   4.  XML-encoded Presence Data Format . . . . . . . . . . . . . . .  6
       4.1.  XML Format Definitions . . . . . . . . . . . . . . . . .  6

Sugano, et al.              Standards Track                     [Page 1]
RFC 3863            Presence Information Data Format         August 2004

             4.1.1. The <presence> element. . . . . . . . . . . . . .  6
             4.1.2. The <tuple> element . . . . . . . . . . . . . . .  7
             4.1.3. The <status> element. . . . . . . . . . . . . . .  8
             4.1.4. The <basic> element . . . . . . . . . . . . . . .  8
             4.1.5. The <contact> element . . . . . . . . . . . . . .  8
             4.1.6. The <note> element. . . . . . . . . . . . . . . .  9
             4.1.7. The <timestamp> element . . . . . . . . . . . . .  9
       4.2.  Presence Information Extensibility . . . . . . . . . . . 10
             4.2.1. XML Namespaces Background . . . . . . . . . . . . 10
             4.2.2. XML Namespaces In Presence Information. . . . . . 11
             4.2.3. Handling Of Unrecognized Element Names. . . . . . 12
             4.2.4. Status Value Extensibility. . . . . . . . . . . . 12
             4.2.5. Standardizing Status Extensions . . . . . . . . . 13
       4.3.  Examples . . . . . . . . . . . . . . . . . . . . . . . . 14
             4.3.1. Default Namespace with Status Extensions. . . . . 14
             4.3.2. Presence with Other Extension Elements. . . . . . 15
             4.3.3. Example Mandatory To Understand Elements. . . . . 16
       4.4.  XML Schema Definitions . . . . . . . . . . . . . . . . . 16
   5.  IANA Considerations. . . . . . . . . . . . . . . . . . . . . . 18
       5.1.  Content-type registration for 'application/pidf+xml' . . 18
       5.2.  URN sub-namespace registration for
             'urn:ietf:params:xml:ns:pidf'. . . . . . . . . . . . . . 19
       5.3.  URN sub-namespace registration for
             'urn:ietf:params:xml:ns:pidf:status' . . . . . . . . . . 20
   6.  Security Considerations. . . . . . . . . . . . . . . . . . . . 21
   7.  Internationalization Considerations. . . . . . . . . . . . . . 22
   8.  References . . . . . . . . . . . . . . . . . . . . . . . . . . 22
       8.1.  Normative References . . . . . . . . . . . . . . . . . . 22
       8.2.  Informative References . . . . . . . . . . . . . . . . . 23
   Appendix A. Document Type Definitions. . . . . . . . . . . . . . . 25
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