Estimation of total Effort and Effort Elapsed in Each Step of Software Development Using Optimal Bayesian Belief Network

  • سال انتشار: 1396
  • محل انتشار: فصلنامه مدیریت فناوری اطلاعات، دوره: 9، شماره: 3
  • کد COI اختصاصی: JR_JITM-9-3_005
  • زبان مقاله: فارسی
  • تعداد مشاهده: 307
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نویسندگان

فاطمه زارع باقی آباد

Ph.D. Candidate Industrial Engineering, Yazd University, Yazd, Iran

حسن خادمی زارع

Associate Prof., Dep. of Industrial Engineering, Yazd University, Yazd, Iran

محمدصابر فلاح نژاد

Associate Prof., Dep. of Industrial Engineering, Yazd University, Yazd, Iran

فضل الله ادیب نیا

Assistant Prof., Dep. of Computer Engineering, Yazd University, Yazd, Iran

چکیده

Accuracy in estimating the needed effort for software development caused software effort estimation to be a challenging issue. Beside estimation of total effort, determining the effort elapsed in each software development step is very important because any mistakes in enterprise resource planning can lead to project failure. In this paper, a Bayesian belief network was proposed based on effective components and software development process. In this model, the feedback loops are considered between development steps provided that the return rates are different for each project. Different return rates help us determine the percentages of the elapsed effort in each software development step, distinctively. Moreover, the error measurement resulted from optimized effort estimation and the optimal coefficients to modify the model are sought. The results of the comparison between the proposed model and other models showed that the model has the capability to highly accurately estimate the total effort (with the marginal error of about ۰.۱۱۴) and to estimate the effort elapsed in each software development step.

کلیدواژه ها

Bayesian belief network, Enterprise resource planning, Machine learning methods, Software effort estimation, Optimization

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