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Spare Parts Identification and Provisioning Models

This paper addresses the problem of spare parts identification and provisioning for multi-component systems. A decision tree considering technical, economical and strategical information available is presented. Mathematical models are proposed to predict, for each spare part, the required quantity over a given planning horizon. The objective may be to maximize either the reliability or the availability of the system. Analytic models are proposed to determine the inventory management parameters such as the order quantity, the order point, the safety stock and so forth. For different management strategies, short comments regarding some improvement issues are provided.