A New Decision Support System for Supplier Selection Using Boolean Algebra

An improved Decision Support System based on the BDM (Bit Decision Making) Method for supplier selection using Boolean Algebra

“…As can be seen in the reference paper [1], the way in which the logical function (that correlates inputs and output in each sub-system) is generated, is not specified. On the other hand, the original method is not able to manage a ranking scheme in supplier'sperformance qualifications at any criterion; for instance, the following degrees:excellent, good, average, poor.…”

“…Let us take the "Business Strengths evaluation phase" presented at [1] and obtain its mathematical model. First, we'll need one bit to encode the "yes" and "no" supplier's qualifications; let us assign "1" and "0", respectively.…”

“…X. (Y + Z) = (X.Y) +(X.Z) If, as in [1], X3 should be "1", Y2 can even reach the following form: Y2= X4.X7 + X4.X6 + X6.X7…”

“…The present work focuses on providing a contribution to the BDM(Bit Decision Making) method reported on [1]. In order to accomplish this, we give some basic conceptual and theoretical references that will provide a full operative mechanism to obtain the correlation function that relates the logic binary values assigned to suppliers by the decision maker(s) (inputs) with each sub-system output decision.…”

“…In section 3 we present the conceptual and theoretical framework that will enable the BDM method to manage a discrete set of values for supplier qualifications. In section 4, we illustrate the application of the conceptual and theoretical background to the case presented at [1]. Finally, at section 5 we propose a variation on a specific sub-system to visualize implications and the benefit of our proposal.…”