Abstract :
A type of services that requires human physical actions and intelligent decision making 
can be found in various real fields,such as services by floor staff in hotels/restaurants 
and caregivingby nurses in hospitals/nursing homes.The authors’ group calls such
 a type of services “the physical and adaptive intelligent service,” and is developing an 
ICT-based system, called the smart voice messaging (SVM) system, that assists working staff 
in cooperation, knowledge sharing, and recording observations .
We conducted experiments in real fields and also invirtual fields, where a virtual field 
is an alternative place forsimulating the real situation.Using information collected by the 
SVM system, varioussubjects were studied in order to discover new usage of the SVM system.

The SVM system is nothing but a tool for mutual communication and recording.We need know-how of using the system effectively.For this purpose, we propose the concept ofinformation supervisory control (ISC).The information supervisor assists a group of persons in their work byproviding appropriate information at an appropriate timing.The information is provided by other persons as voice messages,or by various sensors, and the supervisor can control message distribution.Toward detailed design of ISC scheme, several experiments invirtual field were conducted in order to know how human activitychanges by providing information.

The aim of this research is to give a formal model toward the design of ISC.The model consists of human decision making under the presence of variousinformation, and is sufficiently detailed for implementing it ondiscrete-event simulation tools. Through the simulation, severalcontrol schemes conducted in the experiments are evaluated.

Keywords: Care giving services, Situation awareness, Teamwork.

                                           K. Hiraishi1, N. Uchihira2, S. Choe3 and K. Kobaya4