| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a data base access control system by which a data registrant can easily control a disclosure level of a data browsing person. <P>SOLUTION: The data base access control system is constituted of a means for registering an attribute value for describing information, a means for creating a data set having a disclosure permission level to the attribute value, a means for registering or storing the data set and a means for controlling access to the data set according to the data browsing person who requests access to the data set. In the system, the data registrant can easily control the disclosure level of the data browsing person by performing access control from the preliminarily registered disclosure permission level by every data browsing person and the disclosure permission level set by every attribute value in the data set when the data browsing person requests the access to the data set. <P>COPYRIGHT: (C)2004,JPO&NCIPI |
