Document Type : Review Paper


1 Department of Mathematics, Ganesh Dutt College, Begusarai, India, 851101

2 Department of Mathematics, Lalit Narayan Mithila University, Darbhanga, India


Multiple criteria decision analysis (MCDA) has been widely

investigated and successfully applied to many fields, owing

to its great capability of modeling the process of actual

decision-making problems and establishing proper evaluation

and assessment mechanisms. With the development

of management and economics, real-world decision-making

problems are becoming diversified and complicated to an

increasing extent, especially within a changeable

and unpredictable environment. Multi-criteria decision making is a decision-making technique that explicitly evaluates numerous contradictory criteria. TOPSIS is a well-known multi-criteria decision-making process. The goal of this research is to use TOPSIS to solve MCDM problems in a Pythagorean fuzzy environment. The distance between two Pythagorean fuzzy numbers is utilised to create the model using the spherical distance measure. To construct a ranking order of alternatives and determine the best one, the revised index approach is utilised. Finally, we look at a set of MCDM problems to show how the proposed method and approach work in practise. In addition, it shows comparative data from the relative closeness and updated index methods.


Main Subjects