To provide a dynamic load distribution naming service suitable to a client server system having many clients.

In the client server system consisting of plural server machines 2 to be connected with the clients 1 via a network 3, respective server machines 2 are provided with plural kinds of server objects 40 to offer information service to the clients and naming service objects 50 to specify the server objects to execute the information service to the clients. The respective naming service objects are provided with routines 505 to collect load information of other server machines and executes dynamic naming service according to load states of the respective server machines to client terminals.