Abstract
Analysis and prediction always have a great position in the area of research. With the progress of science and technology and the mature of network technology and mobile device, we start to combine these technologies together. In our research, the mobile device is responsible for reading and filling the questionnaire and then collecting and transmitting the result back to the server. After receiving the result of questionnaire, the server will start using DEMATEL to analyze the elements relationship getting from the questionnaire. Then we can get a causal diagram after using DEMATEL to do analyzing. From the causal diagram, we can help the supplier to obtain the feeling from customer and the efficient way to enhance each element. We will also gather the preference parameters of customer from the questionnaire and can reach the function that suggesting the corresponding supplier to the customer through the result by comparing the customer’s preference parameters and the supplier’s condition parameters. The main idea in the system of our research is to combine parameter analyzing, supplier’s element analyzing and preference comparing suggesting mechanism for customer.