| 摘要 |
PROBLEM TO BE SOLVED: To provide an information processing method, an information processor, and a program, for achieving an efficient cooperative operation by getting an approval for canceling an operation from a user who has performed the operation, in a virtual space which can be simultaneously accessed by a plurality of users. SOLUTION: When a user selects an Undo button to execute Undo processing, an object OBJ_C is undone. The object OBJ_C is created by an operation of a different user who has instructed the Undo processing, so that a confirmation notice for approval is issued to the user who has created the object OBJ_C. In response to the confirmation notice, the user who has created the object OBJ_C transmits reply information about whether or not to approve it. COPYRIGHT: (C)2010,JPO&INPIT
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