Rather than concentrating on just Performance Appraisal (PA), I recommend you instituting comprehensive Performance Management System (PMS). PA is part of PMS.
Setting up Performance Management System (PMS) is far more serious activity. It has to be handled with due sensitivity. To institute PMS it requires great exposure across the spectrum of industries. If mishandled it may do more harm than good.
To know more about instituting PMS in the company, you click here to refer my past post.
There is lot of misconception on the concept of KPI and KRA. To remove this misconception, I have uploaded my presentation on Youtube. To refer that video, you may click here.
I have been giving my replies on the subject time and again. If you wish to refer my past replies, then you may click the following links to refer those:
Subjectivity in Performance Appraisal
I handle consulting on PMS. To know more about my services, you may click here. Talk to your management and if they are ready then we may work together. If you hire my services, I will do deep study of each department and design new measures which hitherto you had never thought of.
1st June 2018 From India, Bangalore