| 摘要 |
PROBLEM TO BE SOLVED: To secure proper order about parallel operation to the same data.SOLUTION: A data management program makes a computer execute procedures of: receiving an operation start request to the data from a first terminal device utilized by a first user, and recording association information between the first user and the data on an operation target into an operation information storage means; receiving an update request to the data from a second terminal device utilized by a second user different from the first user, and deciding presence/absence of the first user associated to the data of an update target by use of the operation information storage means; deciding relative merit relation between the first user and the second user by use of a relative merit information storage means storing information indicating the relative merit relation between the first user and the second user related to update of the data by the second user when the first user is present; and deciding acceptance/rejection of the update request based on a decision result of the relative merit relation. |
