RAM Commander Spare Parts Analysis and Optimization is based on two cost optimization criteria: Total No Shortage Probability & Availability. The module performs Cost-Availability optimization of repairable and discardable parts for all levels of repair. The Spare Parts Analysis and Optimization module takes into account the variety of mission applications, e.g., when the primary restriction is weight or volume, such as for fly-away kits, or when no repair or supply of spare parts is permitted (unsupported mission). Data entry for the module is conveniently minimized via the use of the data in the RAM project.