Developers meaning people like you reading this article need to take a proactive role in designing security into applications and helping to develop the scope of what it means to trust somebody in an online transaction 开发者们（也就是像您那样的本文的读者）需要在设计应用程序的安全性并协助扩大在线交易中信任某人的范围等方面充当一个积极的角色。
The web site of electronic commerce has millions of on - line transactions and visitation , which makes a lot of data about customers . but the information in these data ca n ' t be made full use of 电子商务网站每天都可能有上百万次的在线交易和访问，生成大量的和客户行为有关的数据，但是这些数据资源中所蕴涵的大量有益信息至今却未能得到充分的挖掘和利用。
In this paper , the receiving system based on catv is designed . it takes full advantage of the catv resources to receive the real - time stock information by computer . the solution for online exchanging is also put forward 基于有线电视网的股票接收系统，充分利用现有的有线电视网的资源，用计算机对各种股票信息进行实时接收，并提出了在线交易的解决方案。
Most of current mature applications are in traditional c / s or oltp model . compared with concentrating stock trading system which is designed with ooa thoughts on the j2ee platform , they are lack of ability of extending and being maintained 目前成熟的交易系统绝大多数都是采用c / s结构或者是基于在线交易( oltp )的传统方式，但是他们的系统扩展性和可维护性都极差。
For example , enterprises need on - line business , their e - business websites need on - line payment , balance , division sales and purchase , and for government departments , they invite and enter bids through network 比如：企业之间需要在线交易，企业的电子商务网站需要使用银行的系统进行在线支付和结算，企业要进行网上分销和采购，政府部门的城市规划需要使用网络来进行招标投标等。
Electronic commerce system is composed of each element , which relates to business activity , including shops , customers , financial institutions , governments and so on . they achieve online transactions by using computer network technology completely 电子商务系统由涉及商务活动的各方组成，包括商店、消费者、金融机构、政府等，他们利用计算机网络技术全面实现在线交易电子化。
E - gate is a smart card technology combining iso and usb ( universal serial bus ) versatility with leading - edge security functionality in a plug and play format , providing digital signatures , mutual authentication and encryption required for secure on - line transactions E - gate乃结合iso及usb技术的热插式智能卡数据安全平台，为在线交易提供所需的电子签字、身份确认及数据加密等功能。
Secondly , in order to protect the rights and interests of online trades consumers , the network standard contracts ( clauses ) should be prescribed more strictly , compared with traditional trade , the standard contracts and clauses are used more widely in the online trades 其次，为切实保护在线交易消费者的权益，应该对网络格式合同(或条款)进行更严格的法律规制。与传统交易相比，网上交易中格式合同条款被更加广泛地使用。
For example , users cannot visit the internet directly but to be filtrated bye gateway ; it is able to display wml only but not complicated figures ; online transactions increase load on the server , which lead to a slow rate ; and it cannot visit local storage 用wap的browser方式访问internet功能有限，不能直接访问internet ，需要gateway过滤，只能显示wml ，不能显示复杂格式图形，在线交易增加服务器负荷，速度慢，不能访问本地存储区。
In the plan , focusing on some general problems such as how to effectively transform traditional media into digital format , how to safely implement rights management , how to prevent the " information gulf phenomenon and improve searching efficiency , how to control the rights of users to access media , how to use copyright protecting tools to accomplish online trade mission , the author presented some ideas and united them into a whole system 在方案中，针对数字图书馆建设中常见的几个问题：如何高效地将现有的传统媒体转化为数字媒体、如何有效而又安全地管理数字媒体、如何防止网络信息泛滥提高用户的搜索效率、如何控制用户访问媒体的权限和如何对媒体进行版权保护保证在线交易的正常进行，作者提出了自己的解决方法，并且将它们系统地组织起来。
