| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To achieve shared file management with high security without inconveniencing the owner of a shared file. <P>SOLUTION: A shared file management method for letting users share a file by allowing each of the users to become the owner of the file includes causing a computer to store in a storage part the ownership relationship between the file and its owner and criteria for determining whether or not each owner needs the file; referring to the storage part to determine whether or not each owner having the ownership relationship needs the file, according to the criteria; and prohibiting access to the file without the owner who needs the file, according to the result of the determination. <P>COPYRIGHT: (C)2008,JPO&INPIT</p> |
