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In previous research, we showed that risk factors have a significant negative effect on reliability (e.g., failure occurrence). In this research, we show that it is feasible to predict risk (i.e., the probability that risk factors are related to discrepancy reports occurring on a software release). This is an important advance over the previous research because discrepancy reports are available in...
In this paper, we describe how Bayesian networks can be used to merge quantitative and qualitative information to support IV&V of use cases. Essentially, simple metrics from the use cases are computed, which are then input to a Bayesian network. This network models the relationships between the observable parameters of an IV&V process for use cases, and the desired features of the requirements...
The software fault failure rate bound is discussed and generalized for different reliability growth models. The fault introduction during testing and the fault removal efficiency are modeled to relax the two common assumptions made in software reliability models. Three approaches are introduced for the fault content estimation, and thus they are applied to software coverage estimation. A three-state...
The safe and reliable use of concurrency in multi-threaded systems has emerged as a fundamental engineering concern. We recently developed a model of synchronization contracts to address this concern in programs written in object-oriented languages. Programs written using our model comprise modules that declare access requirements in module interfaces in lieu of using low-level synchronization primitives...
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