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Software effort estimation based on the optimal Bayesian belief network
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DOI：10.1016/j.asoc.2016.08.004.png)
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In this paper, we present a model for software effort (person-month) estimation based on three levels Bayesian network and 15 components of COCOMO and software size. The Bayesian network works with discrete intervals for nodes. However, we consider the intervals of all nodes of network as fuzzy numbers. Also, we obtain the optimal updating coefficient of effort estimation based on the concept of optimal control using Genetic algorithm and Particle swarm optimization for the COCOMO NASA database. In the other words, estimated value of effort is modified by determining the optimal coefficient. Also, we estimate the software effort with considering software quality in terms of the number of defects which is detected and removed in three steps of requirements specification, design and coding. If the number of defects is more than the specified threshold then the model is returned to the current step and an additional effort is added to the estimated effort. The results of model indicate that optimal updating coefficient obtained by genetic algorithm increases the accuracy of estimation significantly. Also, results of comparing the proposed model with the other ones indicate that the accuracy of the model is more than the other models. (C) 2016 Elsevier B.V. All rights reserved.
Keyword:
Software effort estimation
Bayesian belief network
Optimal control
Software quality
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6.6
论文数:
1.4W
被引数:
4.8W
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Software development effort prediction of industrial projects applying a general regression neural network应用通用回归神经网络的工业项目软件开发工作量预测
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