US Patent 6909995 Remote site management system

For the purpose of providing timely and efficient maintenance services even when a system includes machines that are not covered by maintenance services, in a system comprising a center server (202) for customer management and a client terminal (104) owned by a customer, communicatably connected to each other via a network (50), the client terminal (104) stores management information including lease contract information (S2) and issues an event to the center server (202) in accordance with the content of the collected management information (S14). The center server (202) analyzes the content of the event received from the client terminal (104) (S22) and makes a notice of the content of the analyzed event (S24).