Exercise Figure 5.1 is a project WBS with cost apportioned by percentages. If the total project cost is estimated to be $800,000, what are the estimated costs for the following deliverables?

a. Design
b. Programming
c. In-house testing

What weaknesses are inherent in this estimating approach?

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EXERCISE FIGURE 5.1 WBS Figure Definition 10% Objectives 4% Inputs 3% Router systems project Cost $800,000 Design 40% Requirements 6% Outputs 3% Filos 3% Implementation 50% In-house testing 40% Interfaces 9% Customer testing & review 10% Programming 22%