Q. What is the key consideration for determining whether to use BNF, regular expressions, or other notations for dialog representation?

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Q. What is the general form of production rules?

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Q. What happens when the conditions of a production rule become true?

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Q. In production rule systems, what does the term "event-oriented" refer to?

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Q. What type of events are represented in angle brackets in production rule systems?

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Q. What is the role of the dialog manager in a production rule system?

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Q. What happens to the events named in the condition when a rule fires?

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Q. What events represent the user's interactions in the production rule system?

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Q. What is the purpose of the internal events in the production rule system?

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Q. What happens to the system's memory after a rule fires?

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Q. In an event-oriented production rule system, why are events removed from memory after being used in the condition of a rule?

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Q. In state-oriented production rule systems, how are named values (attributes) managed when a rule fires?

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Q. What is a key characteristic of state-oriented production rule systems in contrast to event-oriented systems?

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Q. What term is used to describe the system's set of named values in a state-oriented production rule system?

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Q. What effect does the persistence of attributes have on the firing of rules in state-oriented production rule systems?

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Q. Why might a mixed notation involving both events and state be preferred when describing production rules for dialogs?

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Q. What does the notation "event: condition → action" signify in production rules?

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Q. How are concurrent dialog elements typically represented using production rule systems?

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Q. How does the number of rules required for toggles in a mixed event/state production system scale with the number of toggles?

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Q. How can the concept of "escape" be implemented using production rules?

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