Evaluating RFID System Suppliers under Fuzzy Environment: Based on Incomplete Linguistic Preference Relations

RFID (radio frequency identification) can help enterprise to collect information, so as to improve organizational efficiency and competitiveness; before the enterprise installs RFID system, if the enterprise can choose the most suitable RFID system for itself rapidly, then limitless value would be brought to the enterprise. This study adopts the method of Incomplete linguistic preference relations to simplify calculation and speed up the process of comparison and selection of alternative. This method considers only n-1 judgments, whereas the tradition analytic hierarchy approach (AHP) takes n(n-1)/2 judgments in a preference matrix with n elements to establish a complete preference relation decision making matrix. Experts obtain the matrix by choosing a finite and fixed set of alternatives and perform a pairwise comparison based on their different preferences and knowledge; it is easily led to the reduction of efficiency and the production of inconsistency.