A broker-based quality evaluation system for service selection according to the QoS preferences of users

To calculate the weights, we apply a pairwise comparison matrix and an eigenvector of the matrix. Through the proposed algorithms and system, users can easily perform the process calculating the weights and select the web services according to their QoS preference. We implement the broker-based quality evaluation system and the simulation results show that the weights of the quality attributes and the quality score ranking of the web services are changed according to users' preferences.