## GoldRush18 4 years ago hi everyone i need help with a business assignment its on Critical Path Analysis/Method is there some who can help me?

1. ravir15

whats the question?

2. GoldRush18

red wise manufacturing company would like to assess the activities completion time of predecessors for building a new convention centre. these are outlined in the table below activities] immediate predecessor] duration(months) A - 3 B A 4 C A 6 D B 6 E B 4 F C 4 G D 6 H E,F 8 Required: draw a full timed network diagram to depict the information. identify the critical path calculate the EST and LFT for each activity , show these on network diagram and then transfer them to a table where you will also show the float on each non-critical activity.

3. GoldRush18

i'm having a problem calculating the critical path because there is a dummy activity in the network diagram

4. MAYANKSINGHVI291

so wht is the problem with dummy?

5. MAYANKSINGHVI291

there are two situations when dummy appears.. 1. IF WE HAVE TWO ACTIVITIES HAVING SAME HEAD AND TAIL EVENT WITH DIFFERENT CONSUMPTION OF TIME THEN ALWAYS WE SHOULD INTRODUCE DUMMY RELATION. 2. IF ANY ACTIVITY APPEARS ATLEAST TWO TIMES IN PRECEDING COLUMN, I IN INDIVIDUAL AND II WITH OTHER ACTIVITY, THEN WE SHOULD INTRODUCE DUMMY.

6. MAYANKSINGHVI291

IN YOUR QUESTION I THINK THERE WOULD NOT BE ANY DUMMY ACTIVITY AS NEITHER OF TWO SITUATIONS ARE APPLICABLE

7. GoldRush18

ok so what then would be the critical path?

8. MAYANKSINGHVI291

|dw:1319137378057:dw|

9. MAYANKSINGHVI291

i think remaining you can find.. okk

10. sheg

11. sheg

See this it is same as last pdf but in doc form.

12. GoldRush18

thanks but i'm still having problem working out the floats and may i ask what do you think is the critical path?

13. GoldRush18

|dw:1319292961771:dw|

14. GoldRush18

drawing not so good but thats what i got and where the arrow is pointed is the dummy activity can someone calculate the EST and LFT

15. sheg

hey i sent u a pdf file have u gone thru that one

16. GoldRush18

i gone through it but something kinda seems wrong because remember each letter has to depend on another look at it again

17. GoldRush18

each letter need to have its own node(circle) they can't share

18. sheg

hey if i m not wrong in ur daigram u r makin a mistake dummy will not be at that place where u have drawn it. Dummy will be as i had shown it to u. in this case the answer is 1-2-4-6-7

19. sheg

and the longest time duration to complete any project is taken as the critical path

20. sheg

Do you have the solution of the above question???

21. GoldRush18

no we were only given the question , we should work it out

22. sheg

23. GoldRush18

yes i got the critical path right which would be A-C-F-H and the duration is 21 months

24. GoldRush18

but we suppose to draw a table showing LFT, EST and the float

25. sheg

Activity I Duration I Start time I Finish Time I FLOAT I I ESTILST IEFT I LFT I 1-2 I 3 MonthsI 0 I 0 I 0 I 0 I 0 2-3 I 4 I 3 I 5 I 7 I 9 I 2 2-4 I 6 I 3 I 3 I 9 I 9 I 0 3-5 I 6 I 7 I 9 I 13 I 15 I 2 3-6 I 4 I 7 I 9 I 11 I 13 I 4 4-6 I 4 I 9 I 9 I 13 I 13 I 0 5-7 I 6 I 13 I 15 I 19 I 21 I 2 6-7 I 8 I 13 I 13 I 21 I 21 I 0

26. GoldRush18

looks a bit confusing

27. GoldRush18

lemme show u what i got

28. sheg

see this doc file i feel u will get the answer

29. sheg

hey did u got it now or not in that check the above diagram and check the table

30. GoldRush18

omg this helped so much the only problem now is showing the EST and LFT on the diagram

31. GoldRush18

thank you so much for ur help i really appreciate it :)

32. sheg

its ok whr u r from

33. GoldRush18

im from Jamaica u?

34. sheg

m from india. Actually i m new on this website

35. GoldRush18

cool i'm new too just found out about it last week

36. sheg

i found it only yesterday. on damodaran's website

37. GoldRush18

ok

38. sheg

nice to meet u

39. GoldRush18

same here

40. sheg

what do u do? Studying

41. GoldRush18

yes and i have a major management of business test coming up soon

42. sheg

means u doin MBA....right

43. GoldRush18

not yet im at pre- university im not going to university till next year but i still can't make up my mind what im gonna do yet it has to do something with business though

44. sheg

ok

45. GoldRush18

oh there is a part e to the question it says You were recently employed to the company as part of the project management team. Explain to your manager 5 possible benefits and 3 disadvantages to doing a critical path analysis.(15marks)

46. sheg

Advantages: It takes into consideration the longest time duration to complete the project that is, future is uncertain anything can happen while the project is going on so longest time is taken as the Projects life

47. sheg

Predicts the time required to complete the project.

48. sheg

Shows which activities are critical to maintaining the schedule and which are not.

49. sheg

Provides a graphical view of the project.