Approaches to Design of Real-Time Database Systems

Real-time database systems support applications which have severe operational constraints such as transaction deadlines and continued operation in the face of failures. In designing real-time database systems, there can be two approaches to meet those constraints. First approach is to redesign conventional database systems architecture to replace the bottleneck components. Second approach is to trade desired features, such as serializability, or exploit semantic information of transactions and data for high performance and reliability. In this paper, we discuss issues involved in these approaches, and present algorithms to solve problems in real-time database systems. 18 refs.