根据采用的技术的不同,目前企业实施的电子商务模式有三大类:是基于增值网络和内联网(Intranet)的封闭电子商务模式。在这一模式下企业有选择性地接受信息并控制与企业连接的用户,企业间电子商务的活动主要是支持交易前和交易中阶段的信息交换和单证传输,至于交易后阶段还须依赖于传统方式;二是基于EDI的企业间网(Extranet)基础上企业间 According to the different technologies adopted, there are three major types of e-business models currently implemented by the enterprises: the closed e-business model based on value-added networks and intranets. In this mode, enterprises selectively receive information and control users connected with enterprises. The activities of inter-firm e-commerce mainly support information exchange and document transmission before and during the transaction stage, and depend on the post-transaction stage In the traditional way; Second, EDI-based inter-enterprise network (Extranet) based on the inter-enterprise