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September 2003
Dear
Readers,
The amount of activity surrounding VoiceXML in the industry
continues to burgeon. Along with the many press releases
VoiceXML Forum member companies issued in conjunction
with the recent SpeechTek gathering in New York, the
VoiceXML Forum made two significant announcements of
its own. Representatives from industry notables Hewlett-Packard,
Nuance, VoiceGenie Technologies, and West Corporation
have joined
founders AT&T, IBM, Lucent and Motorola
on the Forum’s Board of Directors. In addition,
the Forum announced the launch of its
VoiceXML Platform
Certification Program. Both of these announcements mark
major milestones for the VoiceXML Forum, and for the
industry in general.
As I write this note, the W3C Voice Browser Working
Group and the Multimodal Interaction Group are assembled
in Budapest, Hungary. These groups will spend the week
discussing future versions of VoiceXML, as well as VoiceXML’s
role in emerging multimodal standards. The aim of this
month’s VoiceXML Review is to help readers develop
a better understanding of the XHTML+Voice specification
for writing multimodal dialogs as well as the tools
that are available today for authoring XHTML+Voice content.
Richard Miranti and his colleague’s at IBM’s
Pervasive Computing Division provide us with a detailed
walk through the anatomy of an XHTML+Voice document
in their feature article entitled “Developing
Multimodal Applications using XHTML+Voice”.
The article is essentially a discussion of the sample
pizza-ordering application that is delivered with the
IBM Multimodal toolkit. If you’re new to XHTML+Voice
and want to get a quick snapshot of how XHTML and VoiceXML
are combined in a clean and intuitive manner to express
multimodal dialogues, this is a good read.
IBM has also been active in integrating support for
XHTML+Voice in their popular WebSphere Studio development
product. Andrea Rutherfoord and colleagues (also of
IBM’s Pervasive Computing Division) provide an
overview of how Websphere Studio can be used to create
X+V multimodal applications. The Multimodal Toolkit
(a free download!) an extension to WebSphere Studio
provides an integrated development environment for XHTML+Voice
content authoring. The toolkit includes other goodies
such as a multimodal-enabled version of the Opera browser
(coupled with IBM speech resources) and a reusable dialog
wizard.
Have
you thought all along that schema validation referred
to some kind of psychotherapy, and DTD was a fraternity
acronym for those who can’t remember the Greek
characters? If so, your VoiceXML content is probably
not conforming to the specification. With the recent
launch of the Forum’s platform certification program,
and platform vendors already announcing their intention
to obtain certification, you can expect an increased
emphasis on writing conforming VoiceXML content. In
the Q&A department this month, Matt Oshry’s
Speak and Listen column sorts out the differences between
DTD’s and XML Schemas, their role in validating
XML markup, and the many tools available to developers
to take advantage of these technologies.
Rob
Marchand continues to test our knowledge on VoiceXML
events in
First Words. I should warn those of you who
are just beginning to cut your VoiceXML teeth –
Rob is dealing with subtleties here that you may not
appreciate when stammering your first VoiceXML “Hello
World”. Nevertheless, it’s good to be reminded
that things don’t always work the way you might
expect. That simple fact is what keeps your customers
salivating for the next version, and you gainfully employed!
Sincerely,
Jonathan
Engelsma
Editor-in-Chief
VoiceXML Review
Jonathan.Engelsma@voicexmlreview.org
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