What Are The Benefits of Employee Self Evaluation or Self Appraisal?

There are a number of benefits to having employees self-evaluate or self appraise, either as part of the formal performance management system, or informally. Here are a few of them:

By having employees do some sort of self evaluation before the actual review meeting, the review meetings can be shorter.
If done properly and tactfully, encouraging employees to self evaluation or self appraise at any time during the year, including around the actual review meetings, help convey the message that the process of performance management and appraisal is a team effort, and not something the manager does to the employee. This greases the wheels of the process, making it more effective.
Whey self appraisal is an accepted and integrated part of the performance management process, it encourages employees to self evaluate throughout the year. That's exceedingly valuable, because what most managers want is employees who can do their jobs, monitor their own progress, and self-correct all year long. When that happens managers can spend far less time fire fighting or micromanaging.