Appraisals are where you get together with your team leader and agree what an outstanding member of the team you are, how much your contribution has been valued, what massive potential you have and, in recognition of all this, would you mind having your salary halved.
Evaluate what you want — because what gets measured, gets produced.
How you measure the performance of your managers directly affects the way they act.
When your work speaks for itself, get out of the way.