Voice XML: Chapter 13 Exercises

VoiceXML: Introduction to Developing
Speech Applications

13.1 For each of the following applications, write a multimodal dialog scenario using notion similar to that of Figure 13.4.

A. Present directions to a restaurant in New York City

Step	Prompt to User		User Response
	Spoken	Displayed	Spoken	Keyboard/Mouse
1	Let's practice the new vocabulary. What is this?	Display a picture of a red book	That is a book
2	Good.What color is the book?		The color of the book is red
3	Put the book into the bookcase		OK	Manipulates the mouse to grab the book and drop it on the bookcase

C. Shopping for clothes in an online clothing store.

Step	Prompt to User		User Response
	Spoken	Displayed	Spoken	Keyboard/Mouse
1	What would you like to buy?		A shirt
2	Here are three shirt styles, which do you like?	Display three shirt styles	This one	Points to desired shirt style
3	This style comes in three colors, which do you like?	Displays four shirt colors and the words that describe each color	Peach color

13.2 For each of the following input/output modes, describe an application that uses the mode and illustrate part of a multimodal dialog scenario using notation similar to that of Figure 13.4.

A. Sequential input

Step	Prompt to User		User Response
	Spoken	Displayed	Spoken	Keyboard/Mouse
1	What would you like to buy?	Display assortment of vegetables	Four apples
2				Bag of peanuts
3			Two big grapefruit

B. Uncoordinated simultaneous input

Step	Prompt to User		User Response
	Spoken	Displayed	Spoken	Keyboard/Mouse
1	What is your account number?		18576	18576

C. Coordinated simultaneous input

Step	Prompt to User		User Response
	Spoken	Displayed	Spoken	Keyboard/Mouse
1	What should I do next?	Display a scene of objects and locations	Put this	Points to an object
2			here	Points to a location

D. Sequential output

Step	Prompt to User		User Response
	Spoken	Displayed	Spoken	Keyboard/Mouse
1		Welcome to Ajax CD and movie rental
2	Are you interested in music or movies?		CDs
3		Display list of "hot" CDs.

E. Uncoordinated simultaneous output

Step	Prompt to User		User Response
	Spoken	Displayed	Spoken	Keyboard/Mouse
1	Welcome to Ajax CD and movie rental	Display list of "hot" CDs and movies
2	Are you interested in music or movies?	Display another list of "hot" CDs and movies

F. Coordinated or synchronized output

Step	Prompt to User		User Response
	Spoken	Displayed	Spoken	Keyboard/Mouse
1	Start here	Display starting point on a map	OK
2	Go two blocks north	Draw an arrow on the map pointing northward	OK
3	Turn left and go three blocks	Draw and arrow on the map pointing westward	Yes
4	Here is the restaurant	Place an X on the map where the restaurant is located	Thanks

13.3 Write two multimodal versions of Exercise 5.2

A.Write a multimodal dialog scenario for a "point and speak" dialog (Use notation similar to Figure 13.4.)

Step	Prompt to User		User Response
	Spoken	Displayed	Spoken	Keyboard/Mouse
1				Points to date field
2		Date field highlighted	December 18, 2002
3		December 18, 2002 in date field		Points to time field
4		Time field highlighted	Three thirty PM
5		3:30 pm in time filed

B. Write extended VoiceXML code for a "point and speak" dialog.

C. Write HTML plus SALT code for a "point and speak" dialog.

<body> <form id="Date" method="post" action="cgi/name.pl"> <input name="txtDate" type="text" ev:event="onfocus" ev:handler="#Date"/>  <script ev:target="#Date" ev:event="vxml:filled"> txtDate = voiceDate; </script>  <input type="submit" value="Submit"/> <input type="reset"/> </form> </body>  <vxml:form id="voiceDate"> <vxml:field name="Date"> <vxml:grammar src="date.srgf" type="application/x-srgf"/> <vxml:prompt id="Dagte"> Your name. </vxml:prompt> </vxml:field> </vxml:form>  and do the same thing again for time.

D. Compare the two versions with respect to programming style and lines of code required.

Extended VoiceXML is declarative code, while HTML plus SALT is event driven procedural code