Decision-making using fuzzy decision tables: Theory and illustration

In this paper the basic principles of decision-making using fuzzy decision tables (FDTs) are explained and illustrated. The main emphasis is on introducing standard notations and definitions. The point of departure is the crisp decision table formalism and its inability to deal with imprecision and vagueness. As a potential solution, elements of the theory of fuzzy sets are used to develop a new modelling technique, known as FDTs. The properties of FDTs are formally described and illustrated using an example in the field of production analysis. The proposed approach of applying FDTs is also evaluated in terms of its crisp counterpart.