Question

What advantage do event languages have over formal grammar notations for describing interactive system dialogs?

a.

They are better suited for graphically-based interactions.

b.

They can express state transitions more effectively.

c.

They provide clear directionality information for events.

d.

They support advanced semantic feedback mechanisms.

Posted under Human Computer Interaction

Answer: (c).They provide clear directionality information for events. Explanation:Event languages offer the advantage of providing clear directionality information for events in the dialog. Unlike formal grammar notations, they can indicate whether an event is initiated by the user or the application.

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Q. What advantage do event languages have over formal grammar notations for describing interactive system dialogs?

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