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Internet 和 Intranet 可以说是当今计算机界最为热门的两个话题,每天都有大批用户加入 Internet 网络,与 Internet 的发展形成鲜明对比的是基于局域网的企业信息系统的发展。在过去十多年中,尽管系统结构从最早的主机方式发展到文件服务器方式以及后来的客户机/服务器方式,使系统的性能有很大改进,但这并没有从根本上解决信息系统中存在的问题。这主要体现在以下几个方面:(1)系统缺乏总体实施规划,各局部的信息表现形式复杂,没有按照统一的标准进行组织;(2)各系统信息种类相关系经常发生变化,无法为使用者提供稳定的支持信息共享的平台:(3)系统的信息生存环境、软硬件平台,如网络操作系统、网络通讯协议等不同,
Internet and Intranet can be said that today’s computer industry is the most popular two topics every day a large number of users to join the Internet network, in stark contrast with the development of the Internet is based on the development of LAN enterprise information system. Over the past ten years, although the system architecture has evolved from the oldest host mode to the file server mode and the later client / server mode, the performance of the system has been greatly improved, but this has not fundamentally solved the problem of existence in the information system The problem. This is mainly reflected in the following aspects: (1) The system lacks the overall implementation plan, and each part of the information manifests itself in complicated forms and fails to be organized according to uniform standards. (2) The relationship among the types of system information often changes and can not be used Provide a stable platform for supporting information sharing: (3) system information survival environment, software and hardware platforms, such as network operating systems and network communication protocols, etc.,