State- and Object Oriented Specification of Interactive VoiceXML Information Services

Usually internet information services are based on HTML, but now more and more phone speech information services appear. In February 2003 VoiceXML 2.0 was published by the VoiceXML Forum to bring the advantages of web-based development and content delivery to interactive voice response information services. Such services include content generation, navigation and functionality support which has to be modeled in a consistent way. This document describes a SiteLang oriented specification approach based on media objects as well as movie concepts for story and interaction spaces. This results in a systematic simplification of the speech application development process. We have created a VoiceXML based information system prototype for an E-Government system which will be used as an example within this paper.