The AWS enabled our service to take advantage of the business opportunity The challenge in mobile commerce is different from that in traditional pc-web commerce. The most difference is the impact of instant loading to our service. Because the smartphone is just always taken on the user’s hand, when any notification of promotion - like push message or email or sms - pop-up on user’s smartphone , the users almost immediately tap the message and connect to our server. So everyday there’re always peak-time of requests happened to our servers in the moment of the promotion notification have been sent. More user request means more opportunity to make merchandise sold. AWS enables our service to quickly deploy more servers to support this instant increasing load and help us to sustain the stable on-line payment service, and of course, help us get more orders every time when the hot sales event happened.