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Voice XML: Chapter 1 Exercises

 


VoiceXML: Introduction to Developing
Speech Applications


 

Objection Recommendation
1 Others overhear private information spoken into a telephone.

• Call from a private place. ·

• Enable callers to use touch-tone for input.

2 The caller is annoyed when speech recognition system fails to understand the caller.

• Revise dialog and grammar to encourage the user to say words that are more easily recognized.

• Revise the dialog to limit the number of possible choices to each prompt.

• Write error-handlers to handle misrecognitions.

3 Limited short-term memory causes caller to forget menu options.

• Make a shorter list of menu options.

• Make the options easy to remember by using voice formatting.

• Enable the user to request "repeat" of option presentation.

4 Long menu lists confuse people. • Use short menu lists
5 Dislike of computers.

• Example of success will decrease caller dislike.

• Automated systems avoid long periods of placed on hold.

6 Caller wants a choice not listed in an option.

• The caller may ask for help to clarify the meaning of options.

• The caller should always be able to transfer to a human operator.

7 Caller is forced to listen to long prompts.

• Make prompts as short as possible.

• Enable callers to barge-in.

8 User gets "lost in space".

• Improve the menu structure and dialogs.

• Add "go back" to redo an option.

• Give shortcut options for advanced users.

9 A caller likes to lead the conversation. • Develop mixed initiative dialog.
10 Some callers naturally speak in a complicated/sophisticated manner. • Improve grammars.
11 System can not understand users with strong accents.

• Encourage callers with accents to train the ASR.

• Enable caller to use touchtone.

12 User assumes that system uses touchtone input rather than speech input. • Give clear instructions about speaking at the beginning of an application.
13 Non-native English speakers feel that the synthesized voice speaks too rapidly. • Include an option that enables callers to alter the synthesized voice speed.
14 User feels the system is too structured and structured. • Develop a mixed-initiative dialog integrated with the system-directed dialog.
15 The caller is hard of hearing. • Provide option to adjust the dialog. (Short Exercise: design dialog to adjust volume)
16 User gets tired of holding the phone. • Get headset

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