206 points
So, what is the benefit of using published estimating data?
21 points
The benefit of using published estimating data is that it is reliable and is generally prepared by using relevant commercially available data.
210 points
The advantage of this technique is that it is very accurate when the project conditions match the conditions under which the published data was generated.
the published data that does exist is based upon the characteristics of the organizations who compiled and published the data
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the published data that does exist is based upon the characteristics of the organizations who compiled and published the data