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project-managementestimationsoftware-estimation

Confidence Interval of COCOMO II Model

It is my understanding that COCOMO II model provides only one-point estimate. So, is it possible to come up with a confidence level when using COCOMO II model? What I am looking for is something like "with 95% confidence, it will take from xxx hours to yyy hours to complete a project."

Thanks,

Long

Solution

  • Dr. Barry Boehm, father of COCOMO II, responded to this question via email and I would like to share it here. By default, the confidence interval of COCOMO II model is +/-25%.