The effect of commonality on the management of service parts. I: The effect of commonality on forecasting the future demands of service parts

This paper seeks to demonstrate the effect of using common part on forecasting the future demands of service parts. Forecasting the service part demands in future periods is a central problem in control the production, and manage the inventory of service parts. Consequently that the forecasting function is the initial stage of efforts to develop an improved production planning or inventory control systems for service parts. However, the uncertainty of demands has a mainly effect on the quality of forecasting. We focus on the uncertainty of demand, and the effect of replacing several components of different products by a common one, on the protection against demand's uncertainty