The Research on Reliability Optimization of Software System Based on Niche Genetic Algorithm

To deal with the problem of low efficiency and low convergence speed in searching the global optimum, Niche Genetic Algorithm was used in reliability optimization of software system. Linear programming works with multi-variable and multi-constraint were solved successfully. And also, the searching performance of the genetic algorithms was improved by introducing the stochastic tournament model, the uniform schema crossover operator and the non-uniform mutation in the genetic algorithm. The simulation results show that the Niche Genetic Algorithm can resolve the multi-module complex software system's reliability allocation effectively, which can improve the computing speed and the resolution quality effectively.