Abstract: A spoken interaction system for enabling a user to interact with said information system, said interaction system being aimed at being connected to the information system, the interaction system being aimed at being connected to a recognition system for enabling the user to interact with the information system by means of phrases generated by said user and processed by the recognition system, said interaction system comprising at least one domain module aimed at having defined therein phrase set-ups that are constructed based on object classes, attributes classes and action classes that are common to said information systems of the considered application domain and are provided to the particularised with specific objects types, action types, attribute types and their instances, provided from the information system, in order to define a grammar of phrases that are provided to be generated by the user to interact with the information system.