Journal article Open Access

An Integrated Neutrosophic and TOPSIS for Evaluating Airline Service Quality

Abdel Nasser H. Zaied; Abduallah Gamal; Mahmoud Ismail

This study applies the neutrosophic set theory to evaluate the service quality of airline. This research offers a novel approach for evaluating the service quality of airline under a group decision making (GDM) in a vague decision environment. The complexity of the selected decision criteria for the airline service quality is a significant feature of this analysis. To simulate these processes, a methodology that combines neutrosophic using bipolar numbers with Technique for Order Preference by Similarity to Ideal Solution (TOPSIS) under GDM is suggested. Neutrosophic with TOPSIS approach is applied in the decision making process to deal with the vagueness, incomplete data and the uncertainty, considering the decisions criteria in the data collected by the decision makers (DMs). Service quality is a composite of various attributes, among them many intangible attributes are difficult to measure. This characteristic introduces the obstacles for respondent in replying to the survey. In order to overcome the issue, we invite neutrosophic set theory into the measurement of performance. We have introduced a real life example in the research of how to evaluate airline service according to opinion of experts. Through solution of a numerical example we present steps of how formulate problem in TOPSIS by neutrosophic. By applying TOPSIS in obtaining criteria weight and ranking, we found the most concerned aspects of service quality are tangible and the least is empathy. The most concerned attribute is courtesy, safety and comfort.

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