Voice Application Development with Voice XML,9780672321382

Voice Application Development with Voice XML

by ; ; ;
ISBN13: 9780672321382
ISBN10: 0672321386
Format: Paperback
Pub. Date: 2001-08-01
Publisher(s): Pearson P T R
List Price: $69.98

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Summary

Voice Application Development with Voice XML works from an application-centric approach, detailing how a programmer proficient in standard web application development tools and techniques can build voice-based applications and interfaces. The book presents both the structure and vocabulary of VoiceXML-the primary enabling technology for voice application development-as well as the best practices developed by the authors over years of voice interface design experience at Lucent.

Table of Contents

Introduction 1(1)
Who Can Benefit from This Book
1(1)
What You Will Need to Get the Most Use from This Book
2(1)
How This Book Is Organized
2(3)
VoiceXML Introduction
5(12)
VoiceXML Language
6(1)
A VoiceXML Scenario
6(1)
Voice Browsing
7(2)
How VoiceXML Works in a Voice Browser
9(1)
Application Input
9(1)
Application Output
9(1)
High-Level Network Architecture
10(1)
VoiceXML Gateway
11(1)
Hosting VoiceXML Applications
12(1)
Selecting VoiceXML Applications
13(1)
Developing in VoiceXML
14(2)
Supporting Languages and Tools
16(1)
The VoiceXML Enabling Network
17(14)
The VoiceXML Gateway
18(6)
TTS Resource
19(1)
ASR Resource
20(2)
VoiceXML Browser and Interpreter
22(1)
Audio Resource
23(1)
TCP/IP Resource
24(1)
Telephony Resource
24(1)
Telephony Network Topologies
24(6)
Wireline Voice Network Topology
25(3)
Wireless Voice Network Topology
28(2)
Summary
30(1)
Developer Tools
31(18)
Types of Environments
32(1)
Environment Options and Trade-offs
33(8)
Hosted Environment
34(6)
Simulated Environment
40(1)
Web-Based Environment
41(7)
BeVocal Cafe
42(1)
HeyAnita FreeSpeech
43(2)
Tellme Studio
45(1)
VoiceGenie Developer Workshop
46(2)
Voxeo Community
48(1)
Other Useful Tools
48(1)
Summary
48(1)
The VoiceXML User Interface
49(18)
Introduction to User Interfaces
50(3)
Components of User Interfaces
51(1)
CHUIs, GUIs, and WUIs
52(1)
Web User Interfaces
52(1)
Overview of VUI
53(3)
VUI Purpose
53(1)
VUI Terms
53(2)
VUI Input/Output
55(1)
Design Differences for VUIs Compared to GUIs
56(5)
Web Browser UI Comparison to a VUI
57(4)
VUI User Characteristics
61(2)
Limited PC and Internet Experience
62(1)
Mobile Environment
62(1)
Single Input/Output Mode
63(1)
Other Important VUI Design Considerations
63(2)
Attract Your Target Audience
63(1)
Represent Tasks Users Want to Perform
64(1)
Provide a Structure for Code Development
64(1)
Minimize Constraint Impacts
64(1)
Summary
65(2)
VUI Design Overview
67(20)
Software Development Process Overview
68(1)
UCD Process Overview
69(5)
User-Centered Design Tasks
72(2)
Usability Heuristics
74(11)
VoiceXML Usability Heuristics
74(2)
Heuristic 1: Minimize Demands on Users' Memory and Cognitive Processes
76(2)
Heuristic 2: Maintain a Simple and Natural Dialog
78(1)
Heuristic 3: Provide Clear Navigation and Shortcuts
79(2)
Heuristic 4: Provide Consistent Feedback and User-Friendly Error Handling
81(2)
Heuristic 5: Maintain Consistency in Navigation and Terminology
83(1)
Heuristic 6: Assess Voice and Personality Selection
83(2)
UCD and System Design References
85(1)
Summary
86(1)
VUI Prototyping and Usability Testing
87(24)
UCD Front-End Work
88(3)
Collecting and Analyzing User Data
89(2)
Project Task Analysis
91(2)
The Case for Task Analysis of New Technology Projects
91(1)
Task Analysis Example
91(2)
Early Prototype-Application Flow Diagram
93(7)
Develop a Low-Fidelity Prototype
93(1)
Diagram-Based Communication
93(1)
Diagram-Based Usability Assessment
94(2)
Usability Requirements Examples
96(2)
Initial Grammar Design
98(1)
Communicating Results with Developers
99(1)
VUI Script-an Intermediate Level Prototype
100(4)
Usability Test Examples
100(2)
Reusable Source
102(1)
Timing Issues and Resource Requirements
103(1)
VoiceXML Code Prototype
104(6)
Assumptions
104(1)
Overview of a Usability Testing Process
105(1)
Designing the Usability Test Scenarios
105(4)
Using Test Results to Improve the Application
109(1)
Completing the Usability Test Cycle
110(1)
Summary
110(1)
The VoiceXML Development Process
111(12)
Requirements
112(4)
Spoken Language of the Deployment Region-
112(1)
Grammar Definition
113(1)
Speech Recognition and TTS Engine Selection
113(1)
VoiceXML Specification Support
113(1)
Data Provisioning
114(1)
Content Provider Interface
114(1)
Performance, Capacity, and Reliability
115(1)
Architecture
116(1)
Design and Implementation
117(1)
Metrics Definition
118(2)
Testing of the VoiceXML Application
120(1)
Deployment
121(1)
Summary
121(2)
Basic VoiceXML Commands
123(34)
Your First VXML Program
124(1)
xml Element
124(1)
Comments
124(1)
vxml Element
124(1)
form Element
125(1)
Form Items
125(3)
name Attribute
125(1)
expr Attribute
125(1)
cond Attribute
126(1)
Usage Notes
126(1)
block Element
126(1)
name Attribute
127(1)
expr Attribute
127(1)
cond Attribute
127(1)
Usage Notes
127(1)
Field Items
127(1)
filled Element
127(1)
meta Element
128(1)
name Attribute
129(1)
content Attribute
129(1)
http-equiv Attribute
129(1)
Variables
129(8)
Declaring Variables
131(1)
name Attribute
131(1)
expr Attribute
131(1)
Usage Notes
131(1)
name Attribute
132(1)
expr Attribute
132(1)
Usage Notes
132(1)
More About Variables
132(2)
Root Documents
134(2)
Session Variables
136(1)
Shadow Variables
136(1)
Variable Naming Conflicts
136(1)
if Element
137(2)
Example
137(2)
if/elseif/else Elements
139(3)
cond Attribute
139(1)
Example
139(2)
Nested if/else/elseif Statements
141(1)
param Element
142(1)
name Attribute
142(1)
expr Attribute
142(1)
value Attribute
142(1)
valuetype Attribute
143(1)
type Attribute
143(1)
subdialog Element
143(6)
name Attribute
143(1)
src Attribute
143(1)
expr Attribute
144(1)
cond Attribute
144(1)
modal Attribute
144(1)
namelist Attribute
144(1)
method Attribute
144(1)
enctype Attribute
144(1)
caching Attribute
144(1)
fetchtimeout Attribute
144(1)
fetchhint Attribute
144(1)
fetchaudio Attribute
145(1)
return Element
145(1)
Example
145(2)
Another Example
147(2)
goto Element
149(3)
next Attribute
149(1)
expr Attribute
150(1)
nextitem Attribute
150(1)
expritem Attribute
150(1)
caching Attribute
150(1)
fetchtimeout Attribute
150(1)
fetchhint Attribute
150(1)
fetchaudio Attribute
151(1)
Example
151(1)
clear Element
152(1)
namelist Attribute
152(1)
Usage Notes
152(1)
Loops
152(2)
exit Element
154(1)
expr Attribute
154(1)
namelist Attribute
154(1)
Example
154(1)
disconnect Element
155(1)
Example
155(1)
Summary
156(1)
VoiceXML Input and Output
157(78)
Output Methods in VoiceXML
158(19)
prompt Element
159(2)
Speech Markup
161(5)
value Element
166(1)
Example
167(4)
audio Element
171(1)
Example
172(5)
Collecting User Input
177(34)
field Element
177(11)
option Element
188(8)
enumerate Element
196(1)
menu Element
197(3)
choice Element
200(3)
link Element
203(4)
grammar Element
207(2)
dtmf Element
209(2)
Events
211(23)
Event Types
212(1)
Default Catch Elements
213(1)
catch Element
213(9)
throw Element
222(3)
error Element, help Element, noinput Element, and nomatch Element
225(2)
reprompt Element
227(4)
initial Element
231(3)
Summary
234(1)
Advanced VoiceXML Elements
235(38)
record Element
236(2)
Example
237(1)
transfer Element
238(2)
Example
239(1)
script Element
240(4)
Example
241(3)
property Element
244(12)
Example
246(10)
object Element
256(3)
Example
257(2)
submit Element
259(3)
Example
260(2)
Completing the VoiceXML Portion of the Application
262(10)
Summary
272(1)
ECMAScript in VoiceXML
273(18)
Comments
274(1)
Variable Types
274(1)
User-Defined Objects
275(2)
Built-in Objects
277(5)
Array Objects
277(1)
Date Objects
278(1)
Math Objects
279(1)
String Object
280(1)
Functions and the Function Object
281(1)
Operators
282(2)
Type Conversion
284(1)
Controlling Program Execution
284(5)
if/else
284(1)
case Statements
285(1)
Loops
286(2)
with
288(1)
Summary
289(2)
Advanced Topics and Server Side Development
291(28)
Languages
292(1)
Generating VoiceXML
293(18)
Java Servlets
293(6)
PHP Scripting
299(3)
Database Access
302(9)
Uploading Audio Files
311(7)
Summary
318(1)
The Future of VoiceXML
319(42)
Speech Synthesis Markup Language Overview
320(1)
Speech Recognition Grammar Overview
321(1)
Multimodal Applications
322(5)
Multimodal Application Impact to VUI
323(1)
Sequential Input/Output
324(1)
Uncoordinated Simultaneous Input/Output
325(1)
Coordinated Simultaneous Input/Output
326(1)
Future User Interface Complexities
327(1)
Coping with Future Complexities During Design and Development
327(1)
The Current State of VoiceXML Multimodal Applications
328(1)
Summary
328(1)
Appendixes
A VoiceXML 1.0 Elements
329(4)
B Bookstore Application
333(26)
C VoiceXML 2.0
359(2)
Index 361

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