Implementing a brand new Performance Management System

Answer the following, assuming you are heading up HR in your company and you’ve been tasked with implementing a brand new Performance Management System:

I. What type of Performance Management System would you use/implement? (no more than two types)

II. Why did you select this particular option(s) as the best for your organization? (include at least three specific examples)

III. In the use/implementation of this, how do you plan on eliminating Manager or evaluator bias?