安徽财贸职业学院 计算机系
--Limitations of electronic commerce
Part I--E-commerce
《 SQL Server 数据库管理与开发》

Electronic commerce is such a wonderful thing, but there is still some limitations. In thinking about electronic commerce, you should realize first and foremost (most important above all these) that computer networks, including the Internet, can do only one thing: transmit electronic messages between computers. Although these messages can include data, information, and software, you cannot move anything physical over a computer network.
安徽财贸职业学院 计算机系
Part I--E-commerce
--types of website
《 SQL Server 数据库管理与开发》

In the Table 3. 1 below, you can see that the first four classification involve businessconsumer models that attempt to generate revenue by selling goods and services over the Internet ( E-retailers/E-malls), advertising( portals), or by charging a fee for a service( auctions).
安徽财贸职业学院 计算机系
--Limitations of electronic commerce
Part I--E-commerce
《 SQL Server 数据库管理与开发》

The fact (that order fulfillment and returns continue to represent a part of the business process even when electronic commerce is used )explains why the more successful implementations of electronic commerce have involved companies that were already engaged in* accepting orders by telephone or postal mail and fulfilling those orders.
《信息管理与信息系统专业英语》
Unit4—E-commerce & E-government --Part I (E-commerce)
《 SQL Server 数据库管理与开发》
Part I--E-commerce

In this lesson, we cover the following area:
安徽财贸职业学院 计算机系
Part I--E-commerce
--types of website
《 SQL Server 数据库管理与开发》


You can categorize(分类) electronic commerce Web sites according to the three Web topologies(拓扑结构) and the audiences served. Intranets are included in this classification because their ability to facilitate organizational Communication improves organizational performance, which is an important part of the definition of electronic commerce strategy.
13. Uniform resource locator
安徽财贸职业学院 计算机系
《 SQL Server 数据库管理与开发》
Part I--E-commerce
专业词汇集：
14. Hypertext markup language (Html)
15. Global information infrastructure
16. Credit card/ debit card 17. Digital cash 18. Electronic funds transfer 19. Secure socket layer
安徽财贸职业学院 计算机系
《 SQL Server 数据库管理与开发》
Part I--E-commerce
安徽财贸职业学院 计算机系
Part I--E-commerce
--types of website
《 SQL Server 数据库管理与开发》

The use of extranets for handling*（处理） business-to-business transaction processing （企业对企业的交易流程）is an essential part of electronic commerce. This classification system will serve to guide（引 导） the discussion of other aspects of electronic commerce.
安徽财贸职业学院 计算机系
Part I--E-commerce
--types of website
《 SQL Server 数据库管理与开发》


The table following lists the eight types of business models for Web sites, along with a description, and example. The types of Web sites are arranged from those (eight types models) with which you are probably most familiar to those that (or) may be new to you.
安徽财贸职业学院 计算机系
《 SQL Server 数据库管理与开发》
Part I--E-commerce
专业词汇集：
7. E-book
8. E-cash/E-check (cheque) /E-wallet
9. Electronic commerce strategies 10. Electronic commerce payment systems 11. File transfer protocol 12. Hypertext transfer protocol
专业词汇集：
20. Secure electronic transaction
21. Internet bill payment
22. Automate teller(???) machine (ATM) 23. Market share 24. Network protocol 25. Online catalog
tations of electronic commerce
Part I--E-commerce
《 SQL Server 数据库管理与开发》

Any company in the business of accepting orders and shipping goods to customers must be prepared to handle returns--another physical process, and one that can prove more complicated than the actual order fulfillment.
安徽财贸职业学院 计算机系
Part I--E-commerce
--types of website
《 SQL Server 数据库管理与开发》

The fifth business model, informediaries(信息 中间商), generates revenue by charging customers for information that they need. The last three business models target the business-to-business value chain using intranets and extranets.
安徽财贸职业学院 计算机系
--Limitations of electronic commerce
Part I--E-commerce
《 SQL Server 数据库管理与开发》

Because electronic commerce relies on computer networks, the shipment (the action of sending, carrying, and delivering goods) of any physical good purchased using electronic commerce must still take place through traditional means, that is , when you buy a physical goods over the Web, it must be picked from a shelf in a warehouse, packed for shipment, and physically moved from the warehouse to the customer via a package delivery service.