Question

Below is a list of jobs that must be accomplished to complete the new project. Assume the company wants to complete the project as early as possible, a) what is the added project cost?

You need not to show the network diagram.

    

Activity	Immediate Predecessor	Normal Time (Days)	Crash Time (Days)	Normal Cost	Crash Cost
A	None	8	7	$45	$50
B	A	3	1	$60	$65
C	A	11	9	$110	$150
D	A	6	5	$50	$90
E	B	9	6	$90	$120
F	E	2	1	$20	$40
G	C, D	5	4	$80	$100
H	D	7	6	$70	$100
I	E, G	4	4	$40	$40
J	H	8	7	$110	$120
K	F, I, J	15	13	$150	$250

b) What is project management?

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Answer 1

PLEASE RATE POSITIVE IF YOU LIKE MY ANSWER TO ENCOURAGE MY EMPLOYMENT

Activity	Normal Time (A)	Crash Time (B)	Normal Cost ( C)	Crash Cost (D)	Crashing Cost (D-C)	Slope =Crash cost per day (D-C/A-B)
A	8	7	45	50	5	5
B	3	1	60	65	5	2.5
C	11	9	110	150	40	20
D	6	5	50	90	40	40
E	9	6	90	120	30	10
F	2	1	20	40	20	20
G	5	4	80	100	20	20
H	7	6	70	100	30	30
I	4	4	40	40	0
J	8	7	110	120	10	10
K	15	13	150	250	100	50

Path	Pathlength
ABEFK	37
ABEIK	39
ACGIK	43
ADGIK	38
ADHJK	44

Crashing critical activity A with least slope
Path	Pathlength
ABEFK	36
ABEIK	38
ACGIK	42
ADGIK	37
ADHJK	43
Crashing J
Path	Pathlength
ABEFK	36
ABEIK	38
ACGIK	42
ADGIK	37
ADHJK	42
Crashing H, C and K
Path	Pathlength
ABEFK	34
ABEIK	36
ACGIK	37
ADGIK	34
ADHJK	39
Crashing D and G
Path	Pathlength
ABEFK	34
ABEIK	36
ACGIK	38
ADGIK	35
ADHJK	38
Further crashing will not reduce critical path length and hence no benefit of crashing further

Therefore added project cost is crashing cost of A,D,H,J,K, C and G

= 5+40+30+10+100+40+20

= $245 Answer

b)

Project management is the management of project activities using knowledge, skills, methods, tools and techniques to achieve the project activities in a controlled and planned fashion. It is a process-driven approach to plan, manage and organize the efforts to accomplish project activities