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1. About SMIL 2.1

Editor
Thierry Michel, W3C.

Table of contents

1.1 Introduction

This section is informative.

This document specifies the extended 2.1 version of the Synchronized Multimedia Integration Language (SMIL, pronounced "smile"). SMIL 2.1 has the following design goals:

SMIL 2.1 is defined as a set of markup modules, which define the semantics and an XML syntax for certain areas of SMIL functionality.

1.2 Content of this Recommendation

This section is informative.

This specification is structured as a set of sections, each defining one or more modules:

This specification also defines four Profiles that are built using the above SMIL 2.1 modules.

1.3 Relation to SMIL 2.0

This section is informative.

SMIL 2.1 is a new version. It is build on top of SMIL 2.0.
A large number of SMIL 2.0 Modules [SMIL20-modules] remain the same in SMIL2.1.
SMIL 2.1 deprecates only a small number of SMIL 2.0 Modules.
SMIL 2.1 introduces new SMIL 2.1 Modules with extented functionalities.

SMIL 2.1 also defines new profiles that are built using the SMIL 2.0 modules [SMIL20] and SMIL 2.1 modules specified in this specification.

If this specification is approved as a W3C Recommendation, it will supersede the 07 January 2005 version of the SMIL 2.0 Recommendation (Second Edition) [SMIL20].

Note: SMIL document players, those applications that support playback of "application/smil+xml" documents, and host language conformant document profiles must support the deprecated SMIL 2.0 functionalities as well as the new SMIL 2.1 functionalities.

1.4 Summary of Changes for SMIL 2.1

This section is informative.

1- The following sections remain unchanged from SMIL 2.0 [SMIL20].

The modules, elements and attributes semantics in the following sections remain the same as in SMIL2.0.
The following sections links are the equivalent sections of the SMIL 2.0 Recommendation [SMIL20].

2- The following sections are updated from SMIL 2.0 [SMIL20].

In these sections, updated or new modules are introduced where new and updated elements or attributes semantics are specified. The following two profiles have also been updated:

3- The following sections introduce new Mobile Profiles.

1.5 Acknowledgements

This document has been prepared by the Synchronized Multimedia Working Group (SYMM-WG) of the World Wide Web Consortium.
The SYMM WG which specified SMIL 2.1 included the following individuals:

Dick Bulterman, CW - Marisa DeMeglio, DAISY Consortium - Yoshihisa Gonno, Sony Corporation - Guido Grassel, Nokia - Markku Hakkinen, DAISY Consortium - Erik Hodge, RealNetworks - Eric Hyche, RealNetworks - Jack Jansen, CWI - Hiroshi Kawamura, NRCD - Antti Koivisto, Nokia - Nabil Layaïda, INRIA - Vincent Mahe, France Telecom - Thierry Michel, W3C - Sjoerd Mullender, CWI - Xabiel García Pañeda, Universidad de Oviedo - Andrei Popescu, Nokia - Masaru Sugano, KDDI Corporation - Daniel Zucker, Access Co., Ltd.

The former SYMM WG which specified SMIL 2.0 included the following individuals:

Hanan Rosenthal, Canon - Jin Yu, Compaq - Pietro Marchisio, CSELT - Lynda Hardman, CWI - Jacco van Ossenbruggen, CWI - Lloyd Rutledge, CWI - Olivier Avaro, France Telecom - Ted Wugofski, Gateway (Invited Expert) - Masayuki Hiyama, Glocomm - Keisuke Kamimura, Glocomm - Michelle Y. Kim, IBM - Steve Wood, IBM - Jeff Boston, IBM - Nabil Layaïda, INRIA - Muriel Jourdan, INRIA - Aaron Cohen, Intel - Wayne Carr, Intel - Marcel Wong, Ericsson - Ken Day, Macromedia - Daniel Weber, Panasonic - Patrick Schmitz, Microsoft - Debbie Newman, Microsoft - Pablo Fernicola, Microsoft - Aaron Patterson, Microsoft - Kevin Gallo, Microsoft - Paul David, Microsoft - Don Cone, Netscape/AOL - Wo Chang, NIST - Didier Chanut, Nokia - Antti Koivisto, Nokia - Roberto Castagno, Nokia - Jack Jansen, Oratrix - Sjoerd Mullender, Oratrix - Dick Bulterman, Oratrix - Kenichi Kubota, Panasonic - Warner ten Kate, Philips - Ramon Clout, Philips - Jeff Ayars, RealNetworks - Erik Hodge, RealNetworks - Rob Lanphier, RealNetworks - Bridie Saccocio, RealNetworks - Eric Hyche, RealNetworks - Robin Haglund, RealNetworks - Geoff Freed, WGBH - Philipp Hoschka, W3C - Philippe Le Hégaret, W3C - Thierry Michel, W3C.

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