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<br />n " <br /> <br />OperatIon Policies In RSS <br /> <br />.. <br /> <br />/::::-:!~ <br />:' .i <br /> <br />2.3 Policy Statement Formats: <br /> <br />Policy statements contain a header, a body, and optional comments. <br /> <br />Header <br /> <br />The format of the header of each policy statement is as follows: <br /> <br />POLICY name TO_DETERMINE variable FOR object <br /> <br />The header of each statement begins with the keyword POLICY followed by a <br />"name", Following the name of the statement is the keyword TO_DETERMINE, <br />Next, the name of the 'Variable" for which the value is to be determined is speci. <br />fied, Following the variable name is the keyword FOR The header ends with the <br />name of the object or object class to which the policy statement applies. <br /> <br />Body <br /> <br />The body of the policy statement begins with the keyword BEGIN and ends with <br />the keyword END_ The body may contain one or more conditions and will always <br />contain a definition, If there are no conditions to be checked the variable in the <br />header is set equal to another variable or expression of variables expressed in the <br />policy definition, <br /> <br />Thus an unconditional policy statement contains only a definition and has the <br />general format: <br /> <br />POLICY name TO_DETERMINE variable FOR object <br />BEGIN <br />variable any expression of defined variables <br />and/or functions of variables. <br /> <br />END <br /> <br />Conditions <br /> <br />If one or more conditions are to be satisfied prior to the setting of a variable value, <br />, the body of the policy statement must contain those condition(s). Conditions are <br />specified between the keywords IF and THEN. If the conditions are satisfied, the <br />definition following the keyword THEN is executed. <br /> <br />The conditional policy statement has the general format: <br /> <br />POLICY name TO DETERMINE variable FOR object <br />BEGIN <br />IF any condition or conditions <br />TP.EN variable = any expression of defined <br />variables and/or functions <br />of variables. <br /> <br />END <br /> <br />The words in uppercase letters in the above formats are keywords contained in <br />each policy statement, as applicable. Additional keywords AND and OR may be <br />included in the condition portion of the policy statement. <br /> <br />20 <br /> <br />Operation Policies in RSS <br />