The second criterion for a good indicator is that what you measure should be a physical, countable thing. Examples of effective measures of administrative output are shown below. Because those listed here are all quantity or output indicators, their paired counterparts should stress the quality of work. Thus, in accounts payable, the number of vouchers processed should be paired with the number of errors found either by auditing or by our suppliers. For another example, the number of square feet cleaned by a custodial group should be paired with a partially objective/partially subjective
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