Method of arranging dialogue type service through interactive service system

A method of arranging interactive service by an interactive service system including a service broker, servers, and client terminals, said service broker being provided for arranging said interactive service in said servers, said servers being provided for executing said interactive service for said client terminals, each of said service broker and said servers at least having a memory as a storage region used for performing an arithmetic process, and a processor for performing said arithmetic process, said method comprising the steps of:

• executing a procedure by which said service broker accepts registration of said interactive service;
• executing a procedure by which said service broker accepts a request from one of said client terminals to provide said interactive service;
• executing a procedure by which said service broker selects servers allowed to provide resources requested by said interactive service as candidates for the destination of arrangement of said interactive service;
• executing a procedure by which said service broker specifies a server as the destination of arrangement of said interactive service from said candidates for the destination of arrangement on the basis of the provision quality of said interactive service between each server and said client terminal;
• executing a procedure by which said service broker arranges said interactive service stored in said memory, in said specified server;
• executing a procedure by which a client terminal accepts said interactive service stored in said memory, in said specified server among said servers;
• and
• executing, after executing said procedure by which said service broker arranges said interactive service, a procedure by which said specified server divides the task of the interactive service thereby to allocate tasks divided by said specified server to a different server.