Patent ID: 7769818

Claim:
An electronic data management system having first and second servers connected via a network to each other, wherein said first server includes: a first storage unit adapted to store first electronic data attached with first attribute information indicating that the first electronic data is an original, an acceptance unit adapted to accept a transfer instruction for transferring the first electronic data stored in said first storage unit to the second server, a duplication unit adapted to create second electronic data by duplicating the first electronic data in response to the transfer instruction being accepted by said acceptance unit, the created second electronic data being stored in said first storage unit, an addition unit adapted to add, to the second electronic data created by said duplication unit, second attribute information indicating that the second electronic data is a duplicate, and a transmission unit adapted to transmit the first electronic data to the second server, wherein the second electronic data, to which the second attribute information is added, remains in said first storage unit after the first electronic data is transmitted; and wherein said second server includes: a reception unit adapted to receive the first electronic data transmitted from said first server, and a second storage unit adapted to store the first electronic data received by said reception unit in conjunction with the first attribute information.