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Voice XML: Chapter 10 Exercises

 


VoiceXML: Introduction to Developing
Speech Applications

10-1 Write two versions of a VoiceXML form that solicits first name and age from a job applicant:

Test exercise 10.1

The VoiceXML form should be application driven.

B. The VoiceXML form should be mixed initiative.

The following grammar is stored as job_form.grxml

C. Perform a comparison test of (a) and (b) with novice callers. Which version do you recommend for novice callers?

Most novice users prefer (a) because it leads them to do the right thing. They don't have to guess what the right words are.

D. Perform a comparison test of (a) and (b) with experienced callers. Which version do you recommend for experienced callers?

Several experienced users (who understand mixed initiative dialogs) find (b) faster. However, they can always drop back into the application-directed mode when they need to.

10.2 Repeat exercise 8-2 for the pizza restaurant, this time developing a mixed initiative dialog.

A. Perform a comparison test of both versions with novice callers. Which version do you recommend for novice callers?

Most novice users prefer (a) because it leads them to do the right thing. They don't have to guess what the right words are.

B. Perform a comparison test of both versions with experienced callers. Which version do you recommend for experienced callers?

Several experienced users (who understand mixed initiative dialogs) find (b) faster. However, they can always drop back into the application-directed mode when they need to.

10-3 Discuss the similarities and differences between the navigation bar of a visual dialog and the universal commands of a verbal dialog.

A. What are the principle characteristics of the navigation bar of a visual dialog?

It always visible and always available so users can jump to other pages

B. What are the principle characteristics of the universal commands of a verbal dialog?

They are always available so callers can jump to other pages.

C. What are the significant similarities between (a) and (b)? Hint: while the options on the navigation bar are always visible, the universal commands of a verbal dialog can never be seen. How does the caller discover them and review them?

By using the command "universal" or similar command to hear the universal commands

10.4 Construct and demonstrate a mixed-initiative version of the dialog in Figure 5.4

See Figure 10.5

10.5 Construct and demonstrate a mixed-initiative version of a dialog in which the caller can order between one and five cans of either Pepsi or Coke.

a