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This paper proposes a software reliability model with a bathtub-shaped fault detection rate. We discuss how the inherent characteristics of the software testing process support the three phases of the bathtub; the first phase with a decreasing fault detection rate arises from the removal of simple, yet frequent faults like syntax errors and typos; the second phase possesses a constant fault detection...
Importance measures of a system provide a sense of the relative priorities of the components from a system reliability perspective. These measures can thus be used to identify critical components and to guide the allocation of resources so that the system reliability can be improved in a cost effective manner. Importance measures are widely used in many engineered hardware and electro-mechanical systems...
Architecture-based software reliability analysis can provide early identification of critical components which can then be targeted for cost-effective reliability improvement of the application. However, an important challenge in conducting this analysis early in the life cycle is that it is nearly impossible to estimate the architectural and component parameters with certainty. The issue of estimating...
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