A theory of explanation might treat explanations in either a realist or an epistemic (that is, anti-realist) sense. A realist interpretation of explanation holds that the entities or processes an explanation posits actually exist--the explanation is a literal description of external reality.
Officers in pay grades O-1, O-2, and O-3 with more than four years of prior cumulative service in an enlisted or warrant officer grade are paid increased wages using the special pay grades of O-1E, O-2E, and O-3E, respectively.
Best Answer: Many employers assign 'grades' to the positions available within their company. This allows them to keep things equitable between different areas and different types of positions-ex: a manager in one area should be at the same grade as a manager in a different area. person cannot exceed his salary grade compensation. If he is at the top f his salary grade he would have to move to the next salary grade in order to receive more money. PS The dollar amounts are for illustration purposes only.