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Instructions
CO-8: Describe the activities involved with initiating and controlling production activities, including measuring performance, flow-shop scheduling, job-shop challenges, and machine scheduling.
Define “Critical path”, “Slack time”, “Resource Levelling” and “Dummy activity” with reference to PERT and CPM.
An architect has been awarded a contract to prepare plans for an urban renewal project. The job consists of the following activities and their estimated value. Draw a critical path arrow diagram for this project, indicate the critical path and calculate the total slack and free slack for each activity.
Job
Descriiption
Predecessor
Expected time in days
A
Prepare preliminary sketches
NA
2
B
Outline specifications
NA
1
C
Prepare drawings
A
3
D
Write specifications
A B
2
E
Run prints
C D
1
F
Have specifications printed
B D
3
G
Assemble bid package
E F
1
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