
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
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