Patent ID: 6275825
Filing Date: 2001-08-14
Classification: G06F,Y10S

Abstract:
A data access control apparatus for limiting access to data on the basis of a user attribute in accessing the data in a database having a plurality of records each constituted by a plurality of data items comprising:user information storage means for storing at least a data item representing identification information unique to a user and a data item representing a user attribute in correspondence with a plurality of users;definition means for defining a user group corresponding to contents of the data item representing the user attribute;generation means for generating user group information representing that a user group is made to correspond to each user;access right information storage means for storing access right information in correspondence with the user group, the access right information representing whether access to the data in the database is allowed; andaccess control means for, when an arbitrary user is designated in accessing the database, determining a user group, to which the arbitrary user belongs, with reference to the user group information generated by said generation means, and determining on the basis of the access right information made to correspond to the determined user group whether access to the data in the database is allowed.