Evaluating Affordability of New Technologies by Means of BK-Products of Fuzzy Relations

This paper describes the method we have developed for cost comparison of technologies in aeronautics industry using fuzzy interval ranking computation method. Fuzzy logics, BK-fuzzy relational productsand fast fuzzy relational algorithms are applied first, in order to retrieve the fuzzy preordering of technologies. Next, fuzzy interval ranking computation method is applied to those fuzzy relational structures so that the ranks of technologies are captured in a fuzzy interval.