Whose Turn is it?: Designing for Overlapping Grammar between Applications and the Voice Browser

Abstract

Voice applications commonly share grammar elements with a supporting voice browser. This overlap creates the need for a rule set to determine whether a given instance should be handled by the browser or the application. Further, the browser grammar may interfere with the recognition of the application grammar and the application developer must be able to mitigate for this potential problem. This paper describes an approach which allows the browser administrator to specify instances which must be handled by the browser and also gives the application developer the ability to weight the application grammar relative to the Global Grammar. The solution described here is consistent with the theory that usability professionals should be involved not only in application user interface design, but also in platform design.