Computer Science ›› 2018, Vol. 45 ›› Issue (11A): 501-504.

• Software Engineering & Database Technology • Previous Articles     Next Articles

Software Cost Estimation Method Based on Weighted Analogy

ZHAO Xiao-min, CAO Guang-bin, FEI Meng-yu, ZHU Li-nan   

  1. College of Computer Science and Technology,Zhejiang University of Technology,Hangzhou 310023,China
  • Online:2019-02-26 Published:2019-02-26

Abstract: Software cost estimation is one of the most important issues in the cycle of development,management decision,and in the quality of software project.Aiming at the common problems of software cost estimation in the software industry,such as inaccuracy of cost estimation and estimation difficulty,this paper presented a weighted analogy-based software cost estimation method.In this method,the similarity distance is defined as the Mahalanobis distance with correlation,and the weight is obtained by particle swarm optimization.The software cost is estimated by analogy method.The result shows that this method has high accuracy compared with non-computational based model methods such as non-weighted analogy and neural networks.At the same time,the actual cases show that this method is more accurate than expert estimation in software cost estimation based on demand analysis at the early stage of software development.

Key words: Software cost estimation, Mahalanobis distance, Weighted analogy, Particle swarm optimization

CLC Number: 

  • TP391
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