Detail design and analysis of an access control system for a multi-backend database system.

Abstract

This thesis describes the design and analysis of an access control mechanism for a multi-backend database system (MDBS). MDBS utilizes a minicomputer as the controller and a number of minicomputers and their disk systems as the backends. The database is distributed over the dedicated disk systems of the backends. The operations on the database are performed by the backends in parallel. Thus, the performance gain of the system is dependent on the number of backends in the system. Each backend performs its own access control operations using duplicated access control information.