About this article
Published Online: Jun 22, 2016
Page range: 60 - 68
DOI: https://doi.org/10.1515/cait-2016-0020
Keywords
© by Galina Ilieva
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.
This paper proposes a new TOPSIS with interval type-2 fuzzy numbers. The extension applies graded mean integration to compare normal fuzzy trapezoidal sets. It is demonstrated by a numerical example for ranking business intelligence software that the TOPSIS modification can operate with qualitative and quantitative criteria, reduces evaluation uncertainty and provides a feasible solution.