Question

Given the following project: 1. Develop a time limited resource profile chart assuming unlimited resource availability. That is, determine the resource requirement on a weekly basis if the project is to be completed in the minimum time. 2. Develop a resource-constrained schedule using the sequential heuristic.

Activity	Predecessor	Duration (week)	Required No. of Workers
1	-	3	2
2	-	2	1
3	2	3	2
4	2,5	4	2
5	1	4	1
6	3,4,1	3	1
7	3	4	2
8	5	3	1

Assume the followings:

• The original relationships of the network cannot be violated.
• Scheduling priority for each activity is determined via the following rules

• least total slack
• early start time
• smallest duration
• maximum resource level

• once an activity is scheduled it continues without interruption

The available resource is three units

Answer 1

Time-limited resource profile is as follows:

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In the original schedule, we see that resource requirement in period 3, 8, and 9 exceeds the available resources (3). Therefore, activities C and G are rescheduled.

Resulting resource-constrained schedule is as follows: