Providing help information in a speech dialog system

摘要

A user can procure an overview of the currently valid options at each juncture of the dialog by calling the context-sensitive help via the general question "what is possible?" or "help!". The help information is generated by a language that serves for modeling the basic background application by virtue of the fact that the language includes help prompts belonging to the respective context. The system generates the respectively appropriate help from the help prompts and the context knowledge.