Network Working Group G. McCobb
Internet-Draft IBM Corporation
Expires: May 15, 2005 Nov. 15, 2004
XHTML+Voice - application/xhtml+voice+xml
draft-mccobb-xplusv-media-type-01
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Copyright Notice
Copyright (C) The Internet Society (2004). All Rights Reserved
Abstract
This document describes the registration of the MIME sub-type
application/xhtml+voice+xml. This sub-type is intended for use as a
media descriptor for XHTML+Voice multimodal language documents. The
XHTML+Voice 1.2 language specification is maintained by the VoiceXML
Forum at <http://www.voicexml.org/specs/multimodal/x+v/12/>.
1. Conventions 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 BCP 14, RFC 2119
[REQ].
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2. Introduction
XHTML+VOice is a member of the XHTML family of document types, as
specified by XHTML Modularization. XHTML+Voice extends XHTML 1.1
[XHTML11] with a modularized subset of VoiceXML 2.0 [VXML20], XML
Events [XMLEVNTS], and a few extensions to both XHTML and VoiceXML
2.0. XHTML 1.1, VoiceXML 2.0 and XML Events are W3C Recommendations.
The language integration defined by XHTML+Voice supports all modules
defined by XHTML Modularization, and adds voice interaction to XHTML
elements to enable multimodal applications. The defined document
type for XHTML+VOice is XHTML Host language document type conformant.
XHTML+Voice 1.2 [XPLUSV12] is maintained by the VoiceXML Forum, at
URI location <http://www.voicexml.org/specs/multimodal/x+v/12/>.
2.1 application/xhtml+voice+xml Usage
The application/xhtml+voice+xml media type is intended to be a media
descriptor for XHTML+Voice documents.
This media type registration is not intended for email usage.
3. IANA Registration
To: ietf-types@iana.org
Subject: Registration of Standard MIME media type
application/xhtml+voice+xml
MIME media type name: application
MIME subtype name: xhtml+voice+xml
Required parameters: none
Optional parameters:
version: refers to the XHTML+Voice language version in the document.
Acceptable values are 1.0, 1.1, and 1.2 (default).
charset: has the same meaning as the text/html media type. See
section 2 of [RFC 2854].
Encoding considerations: 7bit. See section 4 of [RFC 2854].
Security considerations:
XHTML+Voice is an extension of XHTML and has the same security issues
as XHTML. These include interpreting anchors and forms in HTML
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documents, and scripting languages and other dynamic interactive
capabilities. See section 7 of [RFC 2854].
Interoperability considerations :
Because XHTML+Voice is built upon W3C standard recommendations, it is
designed to be interoperable across a wide range of platforms and
client devices. Because the extensions to XHTML are identified by
their namespaces, all browsers that have namespace support can run an
XHTML+Voice document as an XHTML document without voice interaction.
Published specification:
The latest published version of XHTML+Voice is [XPLUSV12].
Applications which use this media type:
XHTML+Voice documents are intended to be deployed on the World
Wide Web and rendered by multimodal browsers that support the
visual and voice modes of interaction. See section 2 of
[RFC 2854].
Additional information:
Magic number(s): There is no single string that is always
present.
File extension(s): html, htm, mxml, xvml
Macintosh File Type Code(s): TEXT
Person & email address to contact for further information:
Gerald M. McCobb
mccobb@us.ibm.com
Intended usage: COMMON
Author/Change controller: Gerald McCobb
Further information:
4. Fragment Identifiers
See section 3 of [RFC 2854].
5. Recognizing XHTML+Voice files
Because XHTML+Voice is XML, an XHTML+Voice document [optionally]
starts with an XML declaration which begins with "<?xml" and has a
DOCTYPE declaration "<!DOCTYPE html". XHTML+Voice 1.2 has the
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following DOCTYPE declaration:
<!DOCTYPE html PUBLIC "-//VoiceXML Forum//DTD XHTML+Voice 1.2//EN"
"http://www.voicexml.org/specs/multimodal/x+v/12/dtd/xhtml+voice12.dtd">
Because XHTML+Voice is in the XHTML family of languages, the root
element of an XHTML+Voice document is 'html' and '<html' can be found
near the top of the document.
6. Security Considerations
Security considerations for this media type are discussed in the MIME
type registration that appears in section 4.
7. References
[REQ] Bradner, S., "Key words for use in RFCs to Indicate
Requirement Levels", BCP 14, RFC 2119, March 1997.
[DOM2EV] "Document Object Model Level 2 Events Specification,"
Tom Pixley, 2000. W3C Recommendation,
http://www.w3.org/TR/DOM-Level-2-Events/.
[HTML401] Raggett, D., et al., "HTML 4.01 Specification", W3C
Recommendation, December 1999.
Available at <http://www.w3.org/TR/html401>.
[MIME4] Freed, N. and N. Borenstein, "Multipurpose Internet Mail
Extensions (MIME) Part Four: Registration Procedures", BCP
13, RFC 2048, November 1996.
[RFC 2854] RFC 2854: The 'text/html' Media Type, Connolly and
Masinter, June 2000, http://www.ietf.org/rfc/rfc2854.txt.
[XHTMLMOD] "Modularization of XHTML," 10 April, 2001, Murray Altheim,
Frank Boumphrey, Sam Dooley, et al, W3C Recommendation,
http://www.w3.org/TR/xhtml-modularization/
[XHTML1] "XHTML 1.0: The Extensible HyperText Markup Language: A
Reformulation of HTML 4 in XML 1.0", W3C Recommendation,
January 2000. Available at <http://www.w3.org/TR/xhtml1>.
[XHTML11] "XHTML 1.1 - Module-based XHTML," 31 May 2001, Murray
Altheim, Shane McCarron, W3C Recommendation,
http://www.w3.org/TR/xhtml11/.
[XMLEVNTS] "XML Events - An events syntax for XML", Steven
Pemberton, T. V. Raman, and Shane McCarron, 2002. W3C
Recommendation, http://www.w3.org/TR/xml-events/.
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[XPLUSV12] "XHTML+Voice Profile 1.2," 16 March 2004, J. Axelsson,
et al, http://www.voicexml.org/specs/multimodal/x+v/12/
[VXML20] "Voice Extensible Markup Language (VoiceXML)," 16 March
2004, Scott McGlashan et al, W3C Recommendation,
http://www.w3.org/TR/voicexml20/.
8. Authors' Address
Gerald M. McCobb
IBM Corporation
8051 Congress Avenue, Office 2019
Boca Raton, Florida 33487
USA
Phone: +1-561-862-2109
Fax: +1-561-862-3922
EMail: mccobb@us.ibm.com
9. Full Copyright Statement
Copyright (C) The Internet Society (2004). This document is subject
to the rights, licenses and restrictions contained in BCP
78, and
except as set forth therein, the authors retain all their rights.
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Funding for the RFC Editor function is currently provided by the
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