It appears that you have confused with 360 Appraisal with 360 Degree PMS. While there can be 360 Degree Appraisal, there is nothing like 360 Degree PMS. Therefore, I request you to remove confusion on these counts.
To reply my past reply on Performance Management System (PMS), you may refer the following link:
To know more about Performance Appraisal, you may click the following link:
29th November 2015 From India, Bangalore