E-commerce (e-business, e-comerce, e-trade) from the literal meaning of speaking English is the use of advanced electronic technology is now engaged in various business activities in a way. Essence of e-commerce should be a complete network of business operation and management of information systems. Specifically, it is to use existing computer hardware, software and network infrastructure 设施, through some of the protocol to connect up the electronic network environment various business's activities. This is a more stringent definition, in popular parlance that e-commerce generally refers to using the Internet for business activities in a way, such as: online marketing, online customer service, and online advertising, online survey. E-Commerce, Chief Information Officer cio.icxo.com Internet, e-commerce can be divided into three areas: information services, transactions and payments. The main contents include: E-Trade ad; electronic purchasing and trading, electronic trading exchange certificate; electronic payment and settlement and the sale of online services. Main types of enterprises and individuals trading transactions (B to C mode) and business transactions between (B to B mode) two. There are four entities involved in electronic commerce: customers (individual consumers or enterprise groups), businesses (including retailers, manufacturers, storage providers), banks (including the issuer, acquirer) and Certification Center. Explosive development of Internet commerce is the direct product of the new Internet technology development. Internet itself is open, global, low-cost, high-efficiency features, has become the inherent characteristics of e-commerce, and so far beyond e-commerce as a new form of the value of trade, it will not only change enterprise's own production, operation, management activities, and will affect all of society's economic performance and structure. 1. E-commerce is the traditional business processes electronic digitization, one hand instead of actual electron flow logistics, a reduction in manpower, material resources, reduce the cost; the other hand, breakthrough time and space constraints, making transactions in any time, any place, thereby greatly increasing efficiency. 2. E-commerce has the openness and global features for enterprises to create more trade opportunities. 3. E-commerce enables businesses to cost close to enter the global electronic market, making SMEs and large enterprises may have the same information resources, improve the competitiveness of SMEs. 4. E-commerce has redefined the traditional distribution model, reduce intermediate links, making producers and consumers directly deal possible, which to some extent, changed the way social and economic operation. 5. E-commerce on the one hand breaking the barriers of time and space, on the other hand, provide a wealth of information resources for various socio-economic elements of reorganization provides a more likely, this will affect the social and economic layout and structure. E-commerce refers to the use of simple, fast, low-cost electronic means of communication is not never met buyers and sellers to conduct various business activities. E-commerce through a variety of electronic means of communication to complete. Simple, such as by phone or fax you a way to conduct business activities with customers, seems to be known as e-commerce; But now people are mainly of e-business EDI (electronic data interchange) and the INTERNET to complete of. Especially with the INTERNET technologies become more sophisticated, the real development of e-commerce will be built on the INTERNET technology. Therefore, the e-commerce was also referred to as IC (INTERNET COMMERCE). From the perspective of trade, e-commerce can be achieved in many areas, this can also e-commerce is divided into two levels, low levels of e-commerce such as e-Business, e-commerce, electronic contracts; the most complete is The most advanced e-commerce should be carried out using INTENET network to all trading activities, namely, the Internet will be information flow, business flow, capital flow and some of the logistics to achieve complete, that is, you can start from Xunzhao customers until negotiation, ordering, online payment (income), the open, according to electronic invoicing as well as EDI, electronic tax payment through the INTERNET at one go. To achieve a complete e-commerce also involves many aspects, in addition to buyers and sellers, but also with banks or financial institutions, government agencies, certification, distribution centers and other institutions to join Caixing. As the parties involved in electronic commerce is not never met each other physically, so the entire e-business process is not a replica of the physical world, business, online banking, online electronic payment and other conditions and data encryption, electronic signatures in electronic commerce play an important role essential.