Patent ID: 8438292

Claim:
A network system comprising: a plurality of service provision terminals having an assigned unique address and being connected to a network; a service request terminal connected to said network; and a storage means connected to said network, wherein each of said service provision terminals and said service request terminal are configured to establish communication with each other by the use of a connectionless protocol, wherein said each of said service provision terminals has an information processing unit and a service provision functional unit, wherein said information processing unit has one or more objects which are programs used for requesting said service provision functional unit to provide its service, said object having at least one control function for requesting said service provision functional unit to provide said service, and each of said object being given a specific identifier in association with said control function, wherein said information processing unit is configured to, upon receiving a service request including said specific identifier, execute said control function indicated by said specific identifier included in said received service request, wherein said service provision functional unit is configured to provide said service when said information processing unit executes said control function, wherein said storage means has a storage unit storing a correspondence relation between said specific identifier of said object in said each of said service provision terminals and said address information of said service provision terminal, wherein said service request terminal has a service request functional unit configured to send said service request to said each of said service provision terminals, said service request functional unit being configured to send said service request including said specific identifier to said service provision terminal having said address information corresponding to said specific identifier used for the service request with reference to said correspondence relation stored in said storage unit, and wherein said storage means has a collecting functional unit configured to periodically receive said address information together with said specific identifier of said object from said each of said service provision terminals, said collecting functional unit being configured to periodically update said correspondence relation stored in said storage unit with reference to said received specific identifier and address information.