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: As Michael wrote, most public sector jobs use a grade structure. Each grade has 'spine points' within it and each spine point is associated to a particular rate of pay which will fall within the salary range for that grade.he salary range for each grade may vary from one employer to another so one employer might have Grade 4: Â£14,704 - Â£15,576 while another has it as Grade 4: Â£19645 - Â£23449.