A Centroid-Based Performance Evaluation Using Aggregated Fuzzy Numbers

In recent years, some methods have been proposed in solving performance evaluation issues by using fuzzy set theory. In this paper, an improvised method for performance evaluation under fuzzy environment is presented. Fuzzy linguistic variables are used throughout the process and the aggregated fuzzy numbers which are based on the standard score concept are employed in aggregating the fuzzy assessment of the decision makers. The centroid indices such as distance index, area index, score index and index based on standard deviation are used in calculating the ranking order of the alternatives. A study has been carried out in evaluating lecturers’ teaching performance at one of the public universities in the East Coast of Malaysia. This method is capable to provide consistent, effective and precise results and may also give great satisfaction to all parties involved in the decision-making process. It can also be a valuable tool in solving a variety of decision-making problems.