# Practice Exercise

14Sep 2021 by
Instructions

Objective: Unit 2 Assignment – Practice Exercises
Weekly topics:  Expected time for activities/ Outline of an information systems plan

I:  Time estimates (10 points)
Calculate the expected time for the following activities.

Activity
Optimistic Time
Most Likely Time
Pessimistic Time
Expected Time

A
3
7
11

B
5
9
13

C
1
2
9

D
2
3
16

E
2
4
18

F
3
4
11

G
1
4
7

H
3
4
5

I
2
4
12

J
4
7
9

II:  Project diagrams (20 points)

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

Activity No.
Immediate Activity
Time (weeks)
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

Specific tasks for exercise II project diagrams.

Draw a network diagram for the activities.
Construct a Gantt chart for the project.
Calculate the earliest expected completion time.
Show the critical path.

III.  Preliminary outline of an information systems plan (20 points)

Create a preliminary outline of an information systems plan.
Choose a company that you are familiar with (or research one that you are not).
Follow the “Outline of an information systems plan” shown in and complete a short information systems plan for the organization you chose.
Write at least one brief paragraph for each of the seven categories in the outline.

FIGURE 4-15 Outline of an information systems plan

Assignment Resource(s)
Valacich, J. S. & George, J. F. (2016). Modern systems analysis and design (8th ed.). Upper Saddle River, NJ: Pearson. ISBN: 978-0134204925

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