ii ACKNOWLEDGMENTS

iii In today's society, due to the credit card is easy to carry and buying products by using credit card can delay the time of payment, it makes people consume by credit cards in many occasions, such as restaurants, shopping mall, the flight tickets and traveling. In addition, consuming by credit card can accumulate the points to exchange the free products. However, most consumers may forget that the accumulated credit points can be used to exchange the free products. When consumers facing the multiple choices of free products, they often like all products and do not know which products to exchange are better. So, a recommendation system is proposed. The system will tell the consumer which products he/she can exchange appropriately and the consumer can browse and exchange the products easily at any time. Different from the traditional system within the bank web, the proposed system combines web server, database and Internet technology with collaborative filtering and recommendation model. It finds the customers ’ preference by analyzing their browsin