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Card Payment SystemStep Five: Group Work – A analysis of the payment system of Dangdang Online Bookstore(). a) Students will logon to the internet and check the current exiting online payment systems of a particular website in order to verify what they learnt previously. b) A group discussion will help to analyze the advantages or disadvantages of the payment system.Step Six: A summary to the lecture. A brief introduction to the tendency of future payment systems.4 /