Question

Consider a project to produce custom door moldings for GMC Acadia? cross-over vehicles, described in the following table.

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Activity	Activity Time ?(weeks)	Immediate? Predecessor(s)
START	0	minus?
A	2	START
B	6	START
C	4	B
D	2	A
E	7	?A, B
F	8	?D, E
G	4	?C, E
FINISH	0	?F, G

a. If you start the project? immediately, when will it be? finished?

The critical path is path B?E?Fand the project duration is 21 weeks.

b. You are interested in completing your project as soon as possible. You have only one option. Suppose you could assign Employee? A, currently assigned to Activity? G, to help Employee? B, currently assigned to Activity F. Each week that Employee A helps Employee B will result in Activity G increasing its time by one week and Activity F reducing its time by one week. How many weeks should Employee A work on Activity? F?

Employee A should work ? weeks on Activity F and the? project's duration will be reduced to ? weeks. (Enter your responses as integers.?)

* The ? is where the answer should go.

Answer 1

AON:

Path and Duration:

ADF	12
AEF	17
AEG	13
BEF	21
BEG	17
BCG	14

Project time = 21 weeks (BEF)

b) Time for F is 8 weeks and time for G is 4 weeks, in order to have equal time of 6 weeks for both F & G, A will have to work for 2 week. The impact will be:

	Old	New
ADF	12	10
AEF	17	15
AEG	13	15
BEF	21	19
BEG	17	19
BCG	14	16

So, new time for project completion will reduce to 19 weeks

So, A should work for 2 weeks and project's duration will be reduced to 19 weeks