Two Dimensional Stochastic Differential Equation Model for OSS Reliability Analysis

An OSS has been mainly used under the network service [1]. At present, the cloud computing service is changing to the edge computing [2–6]. The edge computing is useful for the continuity and responsibility of network service. Generally, it is well known that the fault-detection phenomenon depends on the maintenance effort, because the number of software faults is influenced by the effort expenditures. Our research group has proposed many effort maintenance models in the past [7–14]. All of these models have used the effort data sets of OSS. On the other hand, the OSS reliability assessment methods of this chapter are used the OSS fault count data. In the past, the software reliability has been generally assessed by using the SRGM’s and the fault-detection count data. Then, the methods of software reliability assessment based on the SRGM’s have been proposed by several researchers [15, 16].