1. 1Copyright © PIPEBEACH AB 2000. All rights reserved. Scott McGlashan zW3C Voice Browser Dialog Requirements and Specifications zTranscoding WML into VoiceXML zLanguage integration issues integration of WAP and VoiceXML languages

2. 2Copyright © PIPEBEACH AB 2000. All rights reserved. Scott McGlashan z‘Dialog’ qua DTMF/speech input, audio/speech output zRequirements (draft published December 1999) z input/output, confirmation, navigation, events, variables, etc zSpecification (based on VoiceXML 1.0, submitted May 2000) z Grammar, Synthesis and NL Semantics ML integration z change requests (corrections, generalizations, etc) z modularization z VoiceXML into XHTML framework z ‘BareBones’ Dialog ML: initiative, response, evaluation model W3C VB dialog requirements and specifications

3. 3Copyright © PIPEBEACH AB 2000. All rights reserved. Scott McGlashan Service Provider VoiceXML Interpreter XSL VXMLWML Service Data Transformation 1 zextract service data zaligning interaction/design models ztext normalization zlimitations! free input, WMLScript, etc Transformation 2 zcreate media-specific presentation z‘decorate’ data in VoiceXML zAdd grammars, prompts and interface logic transcoding WML into VoiceXML

4. 4Copyright © PIPEBEACH AB 2000. All rights reserved. Scott McGlashan WML transformation example: telstra.com Burke urges goverment …... …... National News Burke urges govt..... apply in source document (e.g. WML, etc) data document (conforming to service DTD) XSL Stylesheet National News Burke urges govt..... …... out XSL Transformer

5. 5Copyright © PIPEBEACH AB 2000. All rights reserved. Scott McGlashan zXHTML Modularization Approach z What modules are functionally distinctive in VoiceXML and WML? What is redundant given XHTML-Basic? z How do developers create services using this approach? Seems very complex … (c.f. Requirements for good HTML, WML, SMIL, and VoiceXML sites). Tools? zBut are we ready to create an integrated markup language in a single step, even if modularized? Stepwise approach, for example z adding speech tags to WML (,,, ) + handling recognition input … language integration issues