In the text it is stated that 68 staff-weeks of effort is required to complete t
ID: 3794553 • Letter: I
Question
In the text it is stated that 68 staff-weeks of effort is required to complete the tasks in Table 5.4. Perform the calculations and verify this statement. Show your work.
TABLE 5.4 A task list
Activity number
Description
Predecessors
Duration
Staff number
2.1
Receive approval to proceed
—
—
—
3.1
Analyze requirements
2.1
1
2
3.2
Design
3.2.1
Redesign existing components
3.1
6
4
3.2.2
Design new components
3.1
3
1
3.2.3
Design interfaces
3.2.2
1
2
3.3
Implement code
3.3.1
Implement new code
3.2.2
6
2
3.3.2
Modify existing code
3.2.1, 3.2.3
5
1
3.4
Finish implementation
3.4.1
Develop integration plan
3.2.2
2
2
3.4.2
Finish unit testing
3.3.1, 3.3.2
2
2
3.4.3
Update documentation
3.3.1, 3.3.2
2
3
3.5
Integrate and test
3.5.1
Develop integration tests
3.4.1
1
3
3.5.2
Perform integration tests
3.4.2, 3.4.3, 3.5.1
1
2
3.6
Perform acceptance tests
3.5.2
1
1
Activity number
Description
Predecessors
Duration
Staff number
2.1
Receive approval to proceed
—
—
—
3.1
Analyze requirements
2.1
1
2
3.2
Design
3.2.1
Redesign existing components
3.1
6
4
3.2.2
Design new components
3.1
3
1
3.2.3
Design interfaces
3.2.2
1
2
3.3
Implement code
3.3.1
Implement new code
3.2.2
6
2
3.3.2
Modify existing code
3.2.1, 3.2.3
5
1
3.4
Finish implementation
3.4.1
Develop integration plan
3.2.2
2
2
3.4.2
Finish unit testing
3.3.1, 3.3.2
2
2
3.4.3
Update documentation
3.3.1, 3.3.2
2
3
3.5
Integrate and test
3.5.1
Develop integration tests
3.4.1
1
3
3.5.2
Perform integration tests
3.4.2, 3.4.3, 3.5.1
1
2
3.6
Perform acceptance tests
3.5.2
1
1
Explanation / Answer
To calculate total Staff Week effort required for the completion of the Task we need to calculate staff-week effort required for each activity seaparately & take a sumtotal of calculated staff week required for each of the activity.
Staff-week effort is calculated by multiplying the duration of the activity with the no. of staff required for the activity.
In the following table the step by step calculation is shown and the final answer is coming as 68 staff week. So the statement is correct.
A B C D E F Activity number Description Predecessors Duration Staff number Calculation Step for each activity (Multiplication of Duration & Staff number required for the activity) Staff-Week of Effort for each step(Duration * Staff Number)
(Column D*Column E) 2.1 Receive approval to proceed — — — Starting point, duration & staff no. required are zero. 3.1 Analyze requirements 2.1 1 2 1*2 2 3.2 Design 3.2.1 Redesign existing components 3.1 6 4 6*4 24 3.2.2 Design new components 3.1 3 1 3*1 3 3.2.3 Design interfaces 3.2.2 1 2 1*2 2 3.3 Implement code 3.3.1 Implement new code 3.2.2 6 2 6*2 12 3.3.2 Modify existing code 3.2.1, 3.2.3 5 1 5*1 5 3.4 Finish implementation 3.4.1 Develop integration plan 3.2.2 2 2 2*2 4 3.4.2 Finish unit testing 3.3.1, 3.3.2 2 2 2*2 4 3.4.3 Update documentation 3.3.1, 3.3.2 2 3 2*3 6 3.5 Integrate and test 3.5.1 Develop integration tests 3.4.1 1 3 1*3 3 3.5.2 Perform integration tests 3.4.2, 3.4.3, 3.5.1 1 2 1*2 2 3.6 Perform acceptance tests 3.5.2 1 1 1*1 1 Answer (Sum total of Staff Effort calculated in Column F) 68