A description of METRIC, a mathematical model of a base-depot supply system translated into a computer program. METRIC is capable of determining base and depot stock levels for a group of recoverable items of the type that accounts for 78 percent of the Air Force's investment in spares. Designed for application at the weapon-system level, METRIC's primary aim is to optimize system performance for specified levels of system investment. This is probably the first multi-echelon, multi-item model ever proposed for Air Force implementation.
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