Topsis based on grey correlation method and it´s application

In order to solve the problem how to determine the index weights in Topsis, we put forward a method based on the theory of grey correlation to determine the index weigh, combined with Topsis, construct a weighted Topsis model by using grey incidence degree, and make use of the calculation steps of weighted Topsis model, then prove the effectiveness of this method by the example selected from the best productive service enterprise.