Chowdhury, Sumit Dutta; Duncan, George T.; Krishnan, Ramayya - In: Management Science 45 (1999) 12, pp. 1710-1723
As databases grow more prevalent and comprehensive, database administrators seek to limit disclosure of confidential information while still providing access to data. Practical databases accommodate users with heterogeneous needs for access. Each class of data user is accorded access to only...