Browser technology is changing very fast these days and we are moving from the visual paradigm to the voice paradigm. Voice browser is the technology to enter this paradigm. A voice browser is a ?device which interprets a (voice) markup language and is capable of generating voice output and/or interpreting voice input, and possibly other input/output modalities."This paper describes the requirements for two forms of character-set grammar, as a matter of preference or implementation, one is more easily read by (most) humans, while the other is geared toward machine generation.
1.Introduction
A voice browser is a ?device which interprets a (voice) markup language and is capable of generating voice output and/or interpreting voice input, and possibly other input/output modalities." The definition of a voice browser, above, is a broad one. The fact that the system deals with speech is obvious given the first word of the name, but what makes a software system that interacts with the user via speech a "browser"? The information that the system uses (for either domain data or dialog flow) is dynamic and comes somewhere from the Internet. From an end-user's perspective, the impetus is to provide a service similar to what graphical browsers of HTML and related technologies do today, but on devices that are not equipped with full-browsers or even the screens to support them. This situation is only exacerbated by the fact that much of today's content depends on the ability to run scripting languages and 3rd-party plug-ins to work correctly.
Much of the efforts concentrate on using the telephone as the first voice browsing device. This is not to say that it is the preferred embodiment for a voice browser, only that the number of access devices is huge, and because it is at the opposite end of the graphical-browser continuum, which high lights the requirements that make a speech interface viable. By the first meeting it was clear that this scope-limiting was also needed in order to make progress, given that there are significant challenges in designing a system that uses or integrates with existing content, or that automatically scales to the features of various access devices.
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