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IT Project Management

Assignment 01

ICT2009 ITPM Assignment 01

Our Group Members

Rangoda S.C 2009/ict/087Kulatunga K.M.D.S.B 2009/ict/094 Gunawardhana S.D.W 2009/ict/013Senevirathna G.D.S.H 2009/ict/053De Silva E.P.M 2009/ict/084

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Exercise 1

Comparison of strengths and weaknesses of activity on node diagrams and activity on arrow diagrams.

If we use activity on arrow diagrams we can show only finish to start relationships. But when we

use activity on nodes diagrams we can show more details on the activities

Such as

Earliest start date,

Earliest finish date,

Latest start date,

Latest finish date,

Activity span,

Float.

And also when we use activity on arrow diagrams sometimes we will have to use dummy nodes

to represent complex relationships and dependencies between activities. Activity on nodes

diagrams show relationships by arrows. Because of that it doesn’t require dummy nodes.

Activities on nodes diagrams are more flexible than activity on arrow diagrams and they can

show all of major types of relationships.

In activity on nodes diagrams, since the activity is on the node more data can be placed on the

activity.

Activity on the arrow diagrams on the other hand presents only the most important elements

and provides a summarized idea of the total picture in an easy to understand format.

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C

1

2

3

4

5

6

A

B E

1

D

F

C

1

2

3

4

5

6

A

B E

1

D

F

G


Exercise:2

Answer

Add new activity G to make one ending Node.

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Exercise:3

ghg

Answer

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1

2

3

4

5

6A

B

C

D

F

E

2A

3

4

5

6

B

C

D

F

E

2A

1

6

G3

4

5

B

C

D

F

E

2A

1

4.a

3 5

4

6B

C

D

E

F

1

A

3 5

4

6B

C

D

E

F

1

A 2G

ICT2009 ITPM Assignment 01To avoid logical error add dummy node 4.a and to make one ending node add new activity G.

Exercise:4

Answer

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1

2A 2

1

2

3 4 5

A

BC

D

E

F

G

12

3 4 5

A

B

C

D

E

F

G


To make one ending node add new activity G.

Exercise:5

Answer

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1

2

3 4 5

A

BC

D

E

F

G

ICT2009 ITPM Assignment 01In this diagram there is no logical error in representation. But in activity of E’s direction cannot be reversed. Because it represents the duration (time) of that activity.

Exercise:6

Answer

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1

2

3 4

5

A

B

C

D

E

F

G

6H


There is a loop in this diagram (G, F, E ). Loops are cannot be there in activity on arrow diagrams. So we added node 6 and activity G to avoid that loop.

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Exercise:07 Choosing and purchasing a desktop computer

Activity Description Duration (Days)

Precedents

A Requirements gathering according to the purpose of the computer

5

B Selecting hardware specifications according to the requirements

4 A

C Compare prices, models, after sale services which are available in the market

7 B

D Decide the model and the place to buy 2 C

E Prepare the amount of money needed 4 D

F Purchasing and doing the transactions 1 D,E

START

FINISH

F 1 Day

1 0

Purchasing

21

21

20

20

D 2 Days

4 2

Decide the model & place

20

18

18

16

C 7 Days

7 0

Comparing information

16

16

9

9

E 4 Days

4 0

Preparing money

20

20

16

16

B 4 Days

4 0

Hardware Specifications

9

9

5

5

A 5 Days

5 0

Requirements Gathering

5

5

0

0


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Choosing and purchasing a desktop computer


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Exercise:8 Organizing and carrying out a survey of users’ opinions of an information system

Activity Description Duration (Days)

Precedents

A Understanding about the current information system and it’s procedure

14 -

B Decide the type of information collecting method 3 A

C Preparing the questioner for survey 5 B

D Selecting a target set of users of the Information System 3 B

E Fixing dates and select a crew to carry out the survey 3 B

F Distribute the survey materials among crew members 1 E,C

G Supervise to carryout and to collect survey materials 1 F

H Analyze the survey information 5 G

I Making decisions according to the survey information and present it to the relevant people

2 H


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Organizing and carrying out a survey of users’ opinions of an information system

2

140

143

170

17

4

19

0

17

5

220

22

6

230

23

7

240

24

8

290

29

9

30

0

30

1

0

0

0

A = 14F = 1 H = 5

D = 3

G = 1 I = 2C = 5

E = 3

B = 3

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