A pay grade is a unit in systems of monetary compensation for employment. It is commonly used in public service, both civil and military, but also for companies of the private sector. Pay grades facilitate the employment process by providing a fixed framework of salary ranges, as opposed to a free negotiation. Typically, pay grades encompass two dimensions: a "vertical" range where each level corresponds to the responsibility of, and requirements needed for a certain position; and a "horizontal" range within this scale to allow for monetary incentives rewarding the employee's quality of performance or length of service. Thus, an employee progresses within the horizontal and vertical ranges upon achieving positive appraisal on a regular basis. In most cases, evaluation is done annually and encompasses more than one method. The U.S. uniformed services pay grades are one example of a military pay grade system.
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