Voice XML Application- Traverse through
voiceby Aswathi P P (Software Programmer, Excellone Technologies)
Voice XML application is an XML application that
defines a treelike structure that the user can traverse through
using voice commands. Voice XML Document Type Definition (DTD) is
the document defining the grammar of valid voice XML- application.
The text-to-speech and speech-to-text processing engine that runs
on the server, is the core component of Voice XML application. Voice
XML is enabled with two types of dialogues, forms and menus that
the application uses to interface with the user. The form is used
to present information to a user or to retrieve information from
the user, while the menu is a specialized form that forces the user
to choose a specific option and then a branch based on the chosen
option. The element contains a direction that indicates the application
where to jump, based on the user's input. A menu uses multiple elements,
which allows the user to select the one he wants.
The potential software applications of voice XML
include, voice access to stock quotes, movie and restaurant listing
and daily news. These voice portals will eventually offer access
to mail.
Futuristic advantages of this technology include
FCC mandated E911 positioning or even a GPS in the handset for driving
direction that will take you through the twists and turns needed
to reach a destination.
Voice XML, the well structured, uniform way to
build logic trees that customers can use to access the information
of interest to them, came up due to the displeasure of some members
of software technology community to textual wireless interfaces
like WAP. Voice XML application can better deliver a specific pinpointed
bit of information to the end user.
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