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The Maser is a new custom-designed sports car. An analysis of the task of building the Maser reveals the following list of relevant activities, their immediate predecessors, and their duration.
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(see chart in attached file)
a) Draw a network diagram for the project.
b) Mark the critical path and state its length.
c) If the Maser had to be completed 2 days earlier, would it help to
i) Buy preassembled transmissions and drivetrains?
ii) Install robots to halve engine-building time?
iii) Speed delivery of special accessories by 3 days?
d) How might resources be borrowed from activities on the non-critical path to speed activities on the critical path?
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https://brainmass.com/business/business-management/operations-management-92997
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Please see the attached file.
Job
Letter Description Immediate Predecessor(s) Normal Time (days)
A Start — 0
B Design A 8
C Order special accessories B 0.1
D Build frame B 1
E Build doors B 1
F Attach axles, wheels, gas tank D 1
G Build body shell B 2
H Build transmission and drivetrain B 3
I Fit doors to body shell G, E 1
J Build engine B 4
K Bench-test engine J 2
L Assemble chassis F, H, K 1
M Road-test chassis L 0.5
N Paint body I 2
O Install wiring N 1
P Install interior N 1.5
Q Accept delivery of special accessories C 5
R Mount body and accessories on chassis M, O, P, Q 1
S Road test car R 0.5
T Attach exterior trim S 1
U Finish T 0
a) Draw a network diagram for the project.
b) Mark the critical path and state its length.
c) If the Maser had to be completed 2 days earlier, would it help to
i) Buy preassembled transmissions and drivetrains?
ii) Install robots to halve engine-building time?
iii) Speed delivery of special accessories by 3 days?
d) How might resources be borrowed from activities on the non-critical path to speed activities on the critical path?
a) Draw a network diagram for the project.
To find the critical path, we need to determine the following quantities for each activity in the
network.
- Earliest start time (ES): the earliest time an activity can begin without violation of immediate
predecessor requirements - Earliest finish time (EF): the earliest time at which an activity can end
- …
