Annual Confidential Report (ACR) Systems
In performance appraisals, employees are evaluated over a certain time and given feedback for future development. I think 360 Degree Feedback is the best to evaluate employees without bias. But feedback should be given to employees in that time.
Annual Confidential Report (ACR) systems are used by various government organizations in many countries. In my opinion ACR is biased and is a faulty measurement of performance and the results can not develop employees' future performance.