1. VoiceXML Builder Arturo Ramirez ACS 494 Master’s Graduate Project May 04, 2001

2. VoiceXML Builder Agenda VoiceXML Language What is VoiceXML? History of VoiceXML Advantages of VoiceXML Voice Portals VoiceXML Builder Purpose and goals Features VoiceXML Builder Tutorial Creating a Voice Enabled Course Registration App

3. VoiceXML Builder What is VoiceXML?  Voice Extensible Markup Language A standard language for voice applications Builds upon the work of earlier technologies: –Motorola’s VoXML –IBM’s SpeechML  VoiceXML Forum Founders: AT&T, IBM, Lucent and Motorola Developed the VoiceXML 1.0 specification –Approved by the W3 consortium, May 2000

4. VoiceXML Builder  whatever

5. VoiceXML Builder Voice Web Characteristics  Users may be mobile  No expensive device or software needed  One-dimensional interface time  Dialog design a challenge  Interface suited to transactions rather than surfing  Session duration is less than usual There is not one World Wide Web, but several

6. VoiceXML Builder Browsing the Internet using voice Visual browsers vs. Voice browsers Elements:  Phone  VoiceXML  VoiceXML Gateway  Server  Scripts  Grammars Elements:  Computer  Network  HTML  Server:  Scripts  Multimedia

7. VoiceXML Builder Advantages of VoiceXML  Cost savings Main input/ output device (initially) is the phone A voice browser (phone) instead of a web browser Implementation of speech solutions without prior knowledge of voice technologies  Make the Web more accessible To people with visual and motor disabilities No need for wired connection, just a phone!

8. VoiceXML Builder VoiceXML Document  Looks a lot like HTML Tag based –To play an audio file or message – Hello world! –To end a user's call: – Different user Interaction –Audio output: –recorded and/or –text-to-speech (TTS) –Audio input: –touch- tone keys (DTMF) and/or –automatic speech recognition (ASR)

9. VoiceXML Builder Structure of a VoiceXML document Head: ?xml, vxml initial tags Body: Form “main_greeting” –Welcome to my application – Close: vxml end tag

10. VoiceXML Builder What is Voice XML Builder?  Project Goal A development platform for voice-based applications  General Features A Java / XML application –runs on multiple systems Makes writing VoiceXML code a lot easier –Provides VoiceXML insert tag tree, –Parsed VoiceXML syntax colorizing –Tutorials, online reference and more… No need to install –Access to it using a web browser

11. VoiceXML Builder VoiceXML Builder Features  VoiceXML Builder Designed as an editor for speech-based telephony applications Compliant with the VoiceXML 1.0 Specification  General Purposes Platform for the development of voice-based applications Encourage the interest in voice browsing programs Create Voice driven applications: –e-commerce –banking –voice portals

12. VoiceXML Builder VoiceXML Tutorials  Tutorials act as guides on how to use the editor  They also provide insight on how to build vxml applications  Start up a tutorial  How to create a simple VoiceXML application http://www.acs.ilstu.edu/faculty/javila/vxml/index.html

13. VoiceXML Builder VoiceXML Builder Demo http://www.acs.ilstu.edu/faculty/javila/vxml/index.html Lets create our first VoiceXML program!

14. VoiceXML Builder Voice Portal Tests using VoiceXML  Application Creation & Setup  Online Documentation & Resources –(1) Not available  Tests and product analysis for this review performed by CT Labs An independent third-party product testing and certification lab. www.ct-labs.com

15. VoiceXML Builder Loading our program into a server  http://café.bevocal.com http://café.bevocal.com  Provides tools and resources to create speech applications for the telephone. 1-877-33-VOCAL File Management VoiceXML Checker Vocal Player Trace Tool Documentation Help

16. VoiceXML Builder Building a Course Registration App.  VoiceXML application A voice-enabled student registration system Access granted through any phone  Main objective Allow students to log in into the system Register for classes Drop classes Get a course description of the classes Obtain help from an operator or assistant

17. VoiceXML Builder Design vs. Coding  User / Programmer Interaction Challenge is the application design

18. VoiceXML Builder Course Registration System  Application Flow Diagram Each module represents one VoiceXML document

19. VoiceXML Builder Course Registration  Main menu options Add a class (1) Drop a class (2) Course Schedule (3) Logout / Exit (4) Operator (0)  Available Classes ACS 261 ACS 352 ACS 355

20. VoiceXML Builder Programming the first module   This is the Student Information System   [(1 2 3 4 5 6 7 8 9)]   Enter your Social Security Number   [yes no dtmf-1 dtmf-2 ]

21. VoiceXML Builder Programming the first module cont. If this is correct, say YES, If this is NOT correct, say NO   [(2 0 9 9 )]   Please enter your PIN 

22. VoiceXML Builder Voice Enabled Registration Demo  Testing the system A four step process 1.Call 1-877-33-VOCAL 2.Provide Developer ID and Password 3.Once in the system: student ssn = 123456789 student pin = 2099 4.Interact with the system using your voice!

23. VoiceXML Builder Questions?  Thank you!  If you want more information Visit the VoiceXML Builder site http://www.acs.ilstu.edu/faculty/javila/vxml/index.html