Nu Coupon应用为当地企业提供了一种移动呈现方式，使其能够与全国性连锁企业直接竞争，同时为大学生提供了即时获取优惠券、了解新闻和促销信息的渠道。
The Nu Coupons application gives local businesses a mobile presence to compete directly national chains and students instant access to coupons, news and sales.
用户与门户交互，而门户与各种后台应用程序交互，可以将它们都聚合到一个浏览器窗口（门户页面）中以呈现给用户。
The user interacts with the portal, and the portal interacts with various backend applications, aggregating them all for the user into a single browser window, the portal page.
处理好用户与呈现给用户的信息之间的关系是任何智能应用程序成败的关键。
The relationship between the user and the information presented is vital to the success of any smart application.
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