Comprehensive evaluation of e-commerce Web site based on concordance analysis

As the e-commerce is playing a more and more important role in our life, the appropriate methods and metrics are needed to evaluate the e-commerce Web sites. The Web sites evaluation belongs to multi-criteria decision problems. The main processes used including survey and technical measure did not establish a mathematic model, nor unite the object´s satisfaction and dissatisfaction. In this paper, the concordance analysis approach is introduced to evaluate the e-commerce Web sites, and the comprehensive evaluation model is established. The concordance priority index and the discordance priority index are adopted to display aspects of the Web site. The project that has both the maximal concordance priority index and the minimal discordance priority index is the best. One instance including 4 Web sites is analyzed to show the application of this model. The advantages of the model are discussed in the end