This paper describes some experiments on multimedial user interfaces within the domain of information systems. The factors tested are the input mode (spoken and written) and system quality (cooperativity, language restrictions) and the influence of the consciousness about the interlocutor's identity. The results show that there are some significant differences on the word level (type, token) and that the users reactions on machine performance are more obvious than on the interlocutor's identity.
Bibliographic reference. Hitzenberger, Ludwig / Kritzenberger, Huberta (1989): "Simulation experiments and prototyping of user interfaces in a multimedial environment of an information system", In EUROSPEECH-1989, 2597-2600.