Voice Application Development with Voice XML

, by Beasley, Rick; Farley, Kenneth Michael; O'Reilly, John; Squire, Leon Henry

Note: Supplemental materials are not guaranteed with Rental or Used book purchases.

ISBN: 9780672321382 | 0672321386
Cover: Paperback
Copyright: 8/1/2001

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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.

Introduction

(1)

Who Can Benefit from This Book

(1)

What You Will Need to Get the Most Use from This Book

(1)

How This Book Is Organized

(3)

VoiceXML Introduction

(12)

VoiceXML Language

(1)

A VoiceXML Scenario

(1)

Voice Browsing

(2)

How VoiceXML Works in a Voice Browser

(1)

Application Input

(1)

Application Output

(1)

High-Level Network Architecture

(1)

VoiceXML Gateway

(1)

Hosting VoiceXML Applications

(1)

Selecting VoiceXML Applications

(1)

Developing in VoiceXML

(2)

Supporting Languages and Tools

(1)

The VoiceXML Enabling Network

(14)

The VoiceXML Gateway

(6)

TTS Resource

(1)

ASR Resource

(2)

VoiceXML Browser and Interpreter

(1)

Audio Resource

(1)

TCP/IP Resource

(1)

Telephony Resource

(1)

Telephony Network Topologies

(6)

Wireline Voice Network Topology

(3)

Wireless Voice Network Topology

(2)

Summary

(1)

Developer Tools

(18)

Types of Environments

(1)

Environment Options and Trade-offs

(8)

Hosted Environment

(6)

Simulated Environment

(1)

Web-Based Environment

(7)

BeVocal Cafe

(1)

HeyAnita FreeSpeech

(2)

Tellme Studio

(1)

VoiceGenie Developer Workshop

(2)

Voxeo Community

(1)

Other Useful Tools

(1)

Summary

(1)

The VoiceXML User Interface

(18)

Introduction to User Interfaces

(3)

Components of User Interfaces

(1)

CHUIs, GUIs, and WUIs

(1)

Web User Interfaces

(1)

Overview of VUI

(3)

VUI Purpose

(1)

VUI Terms

(2)

VUI Input/Output

(1)

Design Differences for VUIs Compared to GUIs

(5)

Web Browser UI Comparison to a VUI

(4)

VUI User Characteristics

(2)

Limited PC and Internet Experience

(1)

Mobile Environment

(1)

Single Input/Output Mode

(1)

Other Important VUI Design Considerations

(2)

Attract Your Target Audience

(1)

Represent Tasks Users Want to Perform

(1)

Provide a Structure for Code Development

(1)

Minimize Constraint Impacts

(1)

Summary

(2)

VUI Design Overview

(20)

Software Development Process Overview

(1)

UCD Process Overview

(5)

User-Centered Design Tasks

(2)

Usability Heuristics

(11)

VoiceXML Usability Heuristics

(2)

Heuristic 1: Minimize Demands on Users' Memory and Cognitive Processes

(2)

Heuristic 2: Maintain a Simple and Natural Dialog

(1)

Heuristic 3: Provide Clear Navigation and Shortcuts

(2)

Heuristic 4: Provide Consistent Feedback and User-Friendly Error Handling

(2)

Heuristic 5: Maintain Consistency in Navigation and Terminology

(1)

Heuristic 6: Assess Voice and Personality Selection

(2)

UCD and System Design References

(1)

Summary

(1)

VUI Prototyping and Usability Testing

(24)

UCD Front-End Work

(3)

Collecting and Analyzing User Data

(2)

Project Task Analysis

(2)

The Case for Task Analysis of New Technology Projects

(1)

Task Analysis Example

(2)

Early Prototype-Application Flow Diagram

(7)

Develop a Low-Fidelity Prototype

(1)

Diagram-Based Communication

(1)

Diagram-Based Usability Assessment

(2)

Usability Requirements Examples

(2)

Initial Grammar Design

(1)

Communicating Results with Developers

(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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Voice Application Development with Voice XML

Summary

Table of Contents

Supplemental Materials