Below is a project WBS with cost apportioned by percent. If the total project cost is estimated to be $$630,000,$ what are the estimated costs for the following deliverables? $($Round the final answers to the nearest dollar.$)$

Router systems project

$$630,000$

Definition Design Implementation

$10\%44\%46\%$

Objectives Requirements Inputs Outputs Files Interfaces Programming In$-$house testing Customer testing and review

$3\%7\%3\%4\%5\%10\%22\%38\%8\%$

All of the following are weaknesses inherent in this estimating approach EXCEPT:

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