PURPOSE: To reserve data delivery service by judging whether or not a data server is capable of the service at the delivery start time requested from a client based on system limit information and delivery data location information.
CONSTITUTION: The client issues a data delivery service request provided with the data name of delivery desired data or the data identifier of the delivery desired data to a controller 101. The controller 101 which receives the request judges whether or not the data delivery service request from the dient can be executed by the contents of the data delivery service request from the client, the system limit information 102, the delivery data location information 103 and system schedule information 104. When it is judged that it can be executed, the reservation processing of the data deluvery service requested from the client is performed. When it can not be executed, the client is informed of a fact that the data delivery service requested by the dient can not be executed.
ONO SHOTARO
NAKAMURA SHOJI
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