Exercise Figure $5\mathrm{.}1$ is a project WBS with cost apportioned by percentages. If the

total project cost is estimated to be $$600,000,$ 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?

Router systems project

Cost: $$600,000$

Definition

$10\%$

Design

$40\%$

Implementation

$50\%$

Objectives

$4\%$

Requirements

$6\%$

Inputs

$3\%$

Outputs

$3\%$

Files

$4\%$

Interfaces

$10\%$

Programming

$20\%$

In$-$house

testing

$40\%$

Customer testing

& review

$10\%$

EXERCISE FIGURE $5\mathrm{.}1$

WBS Figure

Chapter $5$ Estimating Project Times and Costs $1$