关于基本COCOMO模型参数校准的探讨

所有成功的软件组织都将度量作为保证自己管理和技术质量的重要手段，软件成本估计则是软件度量的核心任务。为了提高成本估算的准确性，文章根据特定软件企业中的历史项目数据对基本COCOMO模型进行校准，在具体的参数修正方法上利用对数数据相关算法进行校正，并与其它方法进行了比较，得到了满意的结果。校准后的模型对项目开发成本的预测将会更加准确．从而切实体现COCOMO成本度量工作对于软件项目的指导价值。因此，文章所做的成本估算模型的校准工作，对软件开发企业非常具有实用价值。

Calibrating Parameters of the Basic Model COCOMO

All of the successful software organizations regard metrics as a important means for their manage and technological quality . In order to improve the accuracy of the Basic COCOMO in the process of project metrics,this paper will calibrate some parameters in the model according to software developing environment. So the model will yield more accurate effort predictions. Above all, we provide a calibration methodology Log Date Related to yield superior predicted estimates and contrast it with other approaches. The prediction of the development cost of the project of model after regulating will be more accurate, reflect COCOMO cost measure between work and guidance value , software of project conscientiously. So cost calibration to estimate model this text do work , have practical value very much as to software development enterprise.