The Design of Real-Time Distributed information Systems with Object-Oriented and Fault-Tolerant Characteristics

For real-time distributed information systems (RT-DIS), a high degree of reliability, availability and safety is usually required. In this paper, we rst discuss the major features that a design methodology for RTDIS should possess. A survey of current design approaches is then given. The G-Net methodology for the design of RTDIS with object oriented and fault tolerance characteristics is presented. It is shown that fault tolerant G-Nets supporting roll-back recovery and N-version programming can be designed.

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