An approach towards predictable real-time transaction processing

A real-time database system can be defined as a database system where transactions are associated with real-time constraints typically in the form of deadlines. The system must process transactions to both meet the deadlines and maintain data consistency. Current research effort in this field has been focused on scheduling transactions with soft or firm deadlines under the conventional transaction model and database system architecture. They cannot support predictable realtime transaction processing. In this paper, toe will provide a framework to realize predictable real-time transaction processing. First, we introduce a new model for real-time database systems which includes both hard and soft real-time transactions. Second, we develop an integrated real-time transaction processing scheme under deterministic subsystem support.