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Operations Management Problem

This is for an online class and I am having trouble understanding what is being asked. My professor has not responded to my questions. I really do not understand the table and how I am supposed to accomplish what is being asked. If someone could point me in the right direction I would greatly appreciate it. Thank you

Here is the question:

A set of jobs needs to be scheduled through a single employment center. The details of the jobs in terms of their processing times and due dates are given below:

Jobs 1 2 3 4 5 6
Processing Times 4 6 10 12 3 9
Due Dates 21 14 15 22 3 12

Use different scheduling rules to achieve different objectives as listed below, and provide a rationale for each of the responses:
1. Minimize the throughput time.
2. Minimize the lateness of all jobs.
3. Minimize the prematurity of all jobs.
4. Minimize the number of jobs that are late beyond their due dates.

Solution Preview

See the attached file. Thanks

"A set of jobs needs to be scheduled through a single employment center. The details of the jobs in terms of their processing times and due dates are given below:
"

Job Processing Time Due Dates Time until due/Processing Time
1 4 21 5.25
2 6 14 2.33
3 10 15 1.50
4 12 22 1.83
5 3 3 1.00
6 9 12 1.33
Use different scheduling rules to achieve different objectives as listed below, and provide a rationale for each of the responses: question
First, we use the different scheduling rules and calculate the various performance for that rule.

Criteria: Earliet Due Date (EDD)
Job Sequence Processing Time Flow Time Utilization average # jobs Completion Date Due date Lateness
5 3 3 100% 1 3 3 0
6 9 12 100% 1 12 12 0
2 6 18 100% 1 18 14 4
3 10 28 100% 1 28 15 13
1 4 32 100% 1 32 21 11
4 12 44 100% 1 44 22 22
Total 44 137 100% 50
Mean 27.4 100% 1 10

Criteria: Shortest Processing Time (SPT)
Job Sequence Processing Time Flow Time Utilization average # ...

Solution Summary

Operations management is examined. The scheduling differences to minimize throughput time is determined.

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