For information on performance appraisal, download the MP Sem 5 software and you will find those notes in the HR section.
Also, as regards to a performance appraisal in a company, in Management Paradise, we follow a 360 performance appraisal , in this the whole staff of MP sits together, and people appraise their efforts in MP.
The difficulty is that some people would not like to participate. Also, there might be favoritism but neverthless it does motivate everyone to work better.