처리시간을 고려한 분산시스템의 신뢰성 분석

In this paper, we introduce the service reliability of distributed systems considering the processing time. The service is assumed to be provided by a centralized heterogeneous distributed system which is composed of some sub-systems managed by a control center. To compute the service reliability which is defined as the probability of successfully providing the service in an allowed time, we consider the physical reliability and the concept of the processing time which includes program execution time, data transfer time. We derive the processing time distribution from start time to end time for a required service. An application example is used to explain the procedure of computing reliability.