The main purpose of MAIA, acronym for "Modello Avanzato di Intelligenza Artificiale" (Advanced Model of Artificial Intelligence), is to provide a common experimental platform for several research fields of Artificial Intelligence, such as Computer Vision, Automatic Speech Recognition, Natural Language Processing, Mechanized Reasoning, Human Factors, Knowledge Representation, Hardware and Software Architecture. A visitor of IRST is accompanied by a mobile robot to the desired destination and during the navigation is informed about research activities carried out in some places visited by the robot during transfer. If unpredictable events occur during this mission, caused by human presence or dynamic environment variation, the robot asks questions for continuation or replanning of mission. A prototype of the demonstration system has been fully implemented on a network of workstations. The first results are encouraging and the system is now under test. 1 Introduction MAIA ( Advanced Mode..