Scenario (cont.)
• Bob says, “activate IETM” in order to switch
grammars to the IETM grammar.
– speech.interpreter.GlobalInterpreter.interpret()
– speech.grammar.CentralGrammarHandler.
   setActiveGrammarHandler(IETMGrammarHandler)
• Bob says, “next step” and the speech system speaks
the 1st step to him.
– speech.CentralInterpreter.ActiveInterpreter.
interpret()
– speech.IETMInterpreter.interpret()
– speech.Synthesis.speakStep()