Optimization Criteria
1. CPU utilization
2. throughput
3. turnaround
4. waiting time
5. response time


Explain in detain why some of Optimization Criteria are contradictory.
In most cases we optimize the average measure. However under some circumstances it is desirable to optimize the minimum or maximum values rather than the average. For example to guarantee that all users get good service we may want to minimize the maximum response time.