system analysis and design

Assignment #2

 

7. A project has been defined to contain the following list of activities along with their required times for completion.

 

Activity No.

Activity

Time (weeks)

Immediate Predecessors

1

Collect requirements

3

 

2

Analyze processes

2

1

3

Analyze data

2

2

4

Design processes

6

2

5

Design data

3

3

6

Design screens

2

3,4

7

Design reports

4

4,5

8

Program

5

6,7

9

Test and Document

7

7

10

Install

2

8,9

 

 

a. Draw a Network diagram for the activities.

 

 

b. Calculate the earliest expected completion time.

 

 

c. Show the critical path

 

 

 

d. What would happen if activity 6 were revised to take 6 weeks instead of 2 weeks?

 

8. Construct a Gantt chart for the project defined in Problem and Exercise 7.