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Data security. (English) Zbl 0896.68007

Summary: Maintaining data quality is an important requirement in any organization. It requires measures for access control, semantic integrity, fault tolerance and recovery. Access control regulates the access to the system by users to ensure that all accesses are authorized according to some specified policy. In this paper, we survey the state of the art in access control for database systems, discuss the main research issues, and outline possible directions for future research.

MSC:

68M10 Network design and communication in computer systems
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