Method of determining spares varieties based on AHP and DEA

This paper propose a method of determining spares varieties based on AHP and DEA. Firstly, primary factors affecting determining of spares varieties are analyzed; Secondly, weights of comprehensive importance of spares are determined by the method of combining AHP with DEA; finally, whether the component is classified as spares or not is determined by the weights of comprehensive importance of items. A case study shows that the combination model takes into account the subjective and objective factors and makes the spares varieties determination more scientific and reasonable.