Page 1 of 4. MCA III Semester - Software Project Management. 1. Define forward and backward pass in the network analysis
MCA III Semester -‐ Software Project Management 1. Define forward and backward pass in the network analysis. Draw the network diagram and compute EST, EFT, LST, LFT, TF, FF, and IF for each activities of the project having precedence relationship as shown below. Also find out critical path. Activity Duration (Days) Predecessors
A 10
B 9
C 7
D 9
E 8
F 5
G 11
H 6
I 9
J 12
K 10
L 8
-‐
-‐
A
A
B
B
D,E
C,G
H
G
G,F
K
2. List out various errors in drawing a network diagram. Find out the expected time of each engineer mentioned below. Which engineer you will choose and why? Who is more certain in completing the job? Types NTC Engineer NCELL Engineer
to 5 4
tm 9 5
tp 12 9
3. A project has the following schedule, construct the network diagram and compute EST, EFT, LST, LFT, TF, FF, and IF for each activity and find critical path. Activity A B C D E F G H I J K L Duration 8 2 1 9 4 5 6 3 3 5 2 3 (Days) Predecessors -‐ -‐ A B B C,D E E G,H H I,J E,F 4. What are the differences between CPM and PERT? Find the te (time estimate for x and y where to, tm, tp is 4, 6, 8 days respectively for x and 3, 5, 6 days respectively for y). Also find which is more certain by using S.D. and variance. 5. Explain CPM and PERT and their uses. 6. Draw the network diagram and find EST, EFT, LST, LFT, TF, FF, and IF. S.N. Activity Duration (Days) Predecessor 1 A 5 -‐ 2 B 4 A 3 C 2 A 4 D 3 A 5 E 2 B 6 F 1 C 7 G 3 D 8 H 1 C,E 9 I 2 F,G
Successor B,C,D E F,H G H I I -‐ -‐
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7. Draw a bar chart and explain its advantages and disadvantages. Also find te, and variance when to, tm, tp is 6, 8, 12 days respectively.. 8. Using CPM network find EST, EFT, LST, LFT, TF, FF, and IF for the following activities. Find critical path and duration also. S.N. 1 2 3 4 5 6 7 8 9 10 11 12
Activity A B C D E F G H I J K L
Duration (Days) 3 5 2 7 2 1 3 1 1 3 5 4
Predecessor -‐ A A A B B C D E D,F,G H I,J,K
Successor B,C,D E,F G H,J I J J K L L L -‐
9. What is PERT? In what situation PERT analysis is useful? Discuss project scheduling with limited resources. 10. Draw CPM network. Find EST, EFT, LST, LFT, TF, FF, and IF. S.N. Activity Duration (Days) 1 A 6 2 B 4 3 C 3 4 D 0 5 E 7 6 F 5 7 G 4 8 H 3 9 I 6 10 J 10 11 K 6 12 L 3
Predecessor -‐ A -‐ B B D C E,F G G H,I J
Successor B D,E G F H H I,J K K L -‐ -‐
11. Explain the use of PERT and find the S.D., te, and variance. If to Engineer X 4 Engineer Y 3 Who is more certain in completing the job?
tm 6 5
tp 8 8
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12. Draw a CPM network. Find the critical path, critical activities, project duration, EST, EFT, LST, LFT, TF, FF, and IF. S.N. Activity Duration (Days) Predecessor Successor 1 A 1 -‐ D,E 2 B 4 -‐ F,J 3 C 2 -‐ G 4 D 2 A H 5 E 4 A H 6 F 3 B I 7 G 4 C J 8 H 2 D,E K 9 I 5 F L 10 J 3 B,G -‐ 11 K 3 H L 12 L 4 I,K -‐
13. Explain critical path, float and dummy. Determine project duration, EST, EFT, LST, LFT, TF, FF, and IF. S.N. Activity Duration (Days) Predecessor Successor 1 A 2 -‐ B 2 B 4 B C,D,E 3 C 4 B F,G 4 D 3 B H,I 5 E 4 B J 6 F 3 C K 7 G 4 C L 8 H 2 D L 9 I 0 D M 10 J 5 E M 11 K 3 F -‐ 12 L 6 G,H -‐ 13 M 3 I,J -‐
14. Describe the uses of CPM and PERT and their objectives. Find the expected (mean), standard deviation and variance when optimistic time (to), most likely time (tm) and pessimistic time (tp) is 10, 20, and 25 days respectively. 15. What do you mean by PERT? Find the standard deviation of event 4. Activity 1-‐2 2-‐3 3-‐4
to 3 4 5
tm 5 6 9
tp 7 8 11
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16. Explain PERT. Find mean and standard deviation when to, tm, tp are 5, 10, 20 days respectively. 17. Describe the use of bar chart with merits and demerits. Prepare a bar chart for a project. What is linked bar chart? Explain their uses with merits and demerits. 18. Find EST, EFT, LST, LFT, TF and critical path of the following activity. Draw the resource uses profile. (Add dummy activities if required) Resource Activity Duration (Weeks) Labour Mason 1-‐2 3 5 5 1-‐3 4 2 4 1-‐4 12 3 3 2-‐6 4 2 3 3-‐6 5 5 4 3-‐4 0 0 0 3-‐5 4 2 2 4-‐5 2 3 2 4-‐6 2 1 3
19. What is CPM? Draw a network diagram and determine EST, EFT, LST, LFT, TF, FF, and IF. S.N. Activity Duration (Days) Predecessor Successor 1 A 3 -‐ D 2 B 4 -‐ E 3 C 5 -‐ F 4 D 7 A G,H 5 E 8 B I 6 F 4 C J 7 G 4 D I 8 H 6 D K 9 I 0 E,G N 10 J 3 F L,M 11 K 7 H -‐ 12 L 7 J N 13 M 9 J -‐ 14 N 6 I,L -‐
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