VXML 2.0 offers quite a bit of new functionality and features over the older engines, including the ability to define grammars in the industry standard format of grXML. This appendix covers the theories and practices behind this exciting new grammar format. As the specification has not been finalized by the w3c, do be aware that the information contained herein is subject to change as the specification evolves.
Overview
grXML Basics: This subsection covers the basic syntactical requirements of the grXML markup, including grammar scoping, grXML platform limits, and the inline and external formats.
grXML Hints: This document contains helpful tricks and hints relating to the XML grammar format.
grXML DTMF grammars: So you want to design a grammar that exclusively uses DTMF rather than voice input? This is the place to start. While there are several paths that you can take when designing a DTMF-only XML grammar, the examples and explanations contained in this section will educate you on how you can make a grammar that is compliant across all platforms.
grXML Slots: Covers how to use grammar slots so you can make your inline or external grammar more modular, and hence, more easily reusable with minimal effort.
This section serves as a primer on how to construct a multislot grXML grammar that will return more than one result for each utterance; intended for advanced grammar enthusiasts.
grXML Subgrammars: Covering how to design a subgrammar with the grXML format.
Inline grXML Subgrammars: Details how to go about coding a subgrammar which is imbedded within the VXML itself, rather than as an externally referenced document.
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