OBJECT DIRECTING DATA BASE

PROBLEM TO BE SOLVED: To efficiently perform access to a plurality of object at a time in a transaction, and to reduce a network load by adding a mechanism for a transaction processing for an object. SOLUTION: A transaction processing mechanism 5 provided in an object directing data base server 3 accepts a transaction processing from each client 41 -43 , performs access to an object group in the server 3, and returns the result to the clients 41 -43 . Thus, the mapping of the objects is operated at the transaction processing mechanism 5, and a transaction request to the transaction processing mechanism 5 and the result waiting are operated at the clients 41 -43 so that the retrieval of all the objects or the like can be attained in the server 3. That is, efficient access to complicated data of an object directing data base can be assured, and a network load can be reduced by validly using the processing capability of the server.