A Decision Making Method via TOPSIS on Soft Sets

In this paper, we first present topsis (technique for order performance by similarity to ideal solution) that is a multi-criteria decision making (mcdm) technique. topsis is a practical and useful technique for ranking and selection of a num- ber of externally determined alternatives through distance mea- sures. we then give a decision making method by suing topsis on soft set theory. finally an application is given for this new method.