At the last chapter , we discuss the fault - tolerant technology and propose the model ( ft - mrs ) in the new field . as we know service concept is an important concept for distributed computing , the fault tolerant model build on the level of the service ( component / application ) . we applied the fault tolerant in the insurance syste m 文章最后结合分布式容错技术的发展，提出了针对服务级对象容错模型，由于服务是大颗粒对象(组件或者应用程序) ，又是internet分布式计算环境中软件开发的重要概念，该模型从服务级容错这个新视角对容错的复制管理、失效检测、失效恢复技术及其算法进行了深入的探讨，从而使保险业务组件提供高可用的分布式应用。
Since the 1980 ' s , theory and application of agent has extended from dai and syncretized and referenced with other fields . agent has been a hot term in the field of distributed computation environment , and agent technology has been one hotspot in the research area of artificial intelligence 从80年代末开始， agent理论、技术研究从dai领域中拓展开来，并与许多其他领域相互借鉴和融合， agent已成为分布式计算环境下的热门术浯， agent技术已成为当今人工智能研究的热点之一。
These characteristics of mobile agent promote it to be extensively applied in distributive computing environment , such as the management of network , electronic commerce , information search , etc . the model of mobile agent will become the most important , and fashionable way in network computing environment in future 这些特性都促进了移动agent技术在分布式计算环境中的大量应用，如网络管理，电子商务，信息检索等。移动agent计算模式将成为未来网络计算的主流模式。
The model uses java , and has the advantages of platform - independent , comparing with the traditional message sending technologies , such as rmi , the model jmb realizes the communications and operations of heterogeneous components in distributed computing . the model jmb can be employed to construct the loose - combined message systems , which makes the development simple 相比传统消息传送技术如rmi来说, jmb促进了分布式计算环境中各个组件之间可靠的异步通信,可以用来构建松散耦合的消息系统,不仅可以简化企业的应用开发过程,对企业应用系统今后的升级改造、功能扩充都有重要意义。
In order to realize remote diagnosis using cbr expert system , case base is created based on web database by importing internet into expert system . cscw is a sort of distributed computing network . it can complete corporation of multi members who are in different space and different time by the use of modern computer technique , multimedia , network and humor - computer interface 计算机支持的协同工作( computersupportedcooperativework , cscw )是利用现代计算机技术、多媒体技术和网络技术以及人机接口技术，将时间上分离、空间上分布而工作上又相互依赖的多个协作成员及其活动有机的组织起来，以共同完成某一任务的分布式计算环境。
All these problems show that the traditional software of item bank has being out of season and the distributed item bank system that based on network in order to realize limitless share of sources ( at lest in theory so ) has been springing up with the development of the popularization of network and the research of distributed calculation 随着互联网络的普及以及对分布式计算环境研究的进展，在试题库领域，传统的试题库软件正在逐步失去市场，基于计算机网络以实现无限共享(至少在理论上如此)为目标的分布式试题库系统正在兴起。
