I did performance evaluation in all of my jobs. It is an essential measurement of learning and encourages personal reflection leading to better improvement. If you have heard of the 3R's Habit Reinforcement, I would say performance evaluation falls right in the core of process.
It is a very good tool to accelerate someone's career and put their strength to spotlight too.
May help you to understand how to find the best candidate before even going through the performance evaluation, too! (https://goo.gl/VQcS79)
Read to know more about how to achieve student success/the qualities or habits of a successful student! https://goo.gl/VQcS79