Un método de análisis jerárquico para anticipar la selección de la estrategia de aprovisionamiento en la fase de diseño

Abstract

The selection of cost-efficient supplying strategy is a 
process that involves different aspects, most of them linked 
with the design phase. Usually, this activity is performed 
at the procurement stage and does not engage designers 
and engineers who have drawn up the quality and cost 
characteristics of products. The paper presents a simplified 
analytic hierarchy process (AHP) for the concurrent evaluation 
of economic and quality factors of different supplying 
strategies. The goal of the AHP is to provide a tangible tool for 
designers and engineers for comparing supplying alternatives 
early in the design process. The hierarchy approach is used 
to organize objectives, criteria and alternatives according to 
priorities. A complex assembly of a machine tool has been 
analysed as a case study and four different suppliers with 
different features have been investigated using the AHP. 
Results highlight that, even if the lowest production cost can 
be obtained with Far East suppliers, considering quality criteria, 
national or local suppliers turn out to be the more appropriate 
and robust choice. The sensitivity analysis is beneficial to 
understand the level of confidence associated with the selection of one supplier in comparison with the other supplying 
strategies