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Definitive VoiceXML™ by David Cuddihy, Adam Hocek

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2.6. Mixed initiative forms

The forms that we have seen so far fall into the category of directed dialogs - the computer drills down a preset list of questions and the user just answers them one after another. At the time this is being written, almost all of the interactive voice response applications in production are computer-directed. The next generation of voice applications most likely will not be computer-directed, but rather mixed initiative.

2.6.1. Mixed initiative defined

The term mixed initiative refers to the ability for either the computer or the user to drive the conversation. For example if in the middle of a question-answer session, say the filling out of the Jimmy's Pizza questionnaire, the user could break from the predefined ...

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