We first analyze the corba and event service , and discuss the network management technologies , then we propose a distributed network management model based on corba and corba event service , at last we fulfill the ip accounting of network management by using snmp > corba and java technologies 最后利用已有的corba平台，结合网络管理协议snmp 、 corba技术及其事件服务、网关技术和本文提出的封装技术，采用面向对象语言java实现了本文提出的分布式网络管理模型中的计费管理功能的设计开发。
In the data transfer , according to the characteristic of data type , we adopt multi - kinds of transfer protocol - the control command and emulational graphics data that is transferred on the basis of tcp socket , and the video image transport based on real - time transport protocol ( rtp ) . and between the distributed objects , it adopts multi - kinds of communication way - one way transfer , synchronous call and push technique based on incident serve of corba 在数据的传输中，根据数据类型的特点，采用多种传输协议?基于tcpsocket传输的控制命令、图形仿真数据和基于实时传输协议rtp传输的视频图像；分布式对象之间采用多种通信方式?单向发送调用、同步调用和基于事件服务的push技术。
Further more , the thesis lucubrates some key techniques : aiming at the management of the distributed objects , we skillfully construct the isomorphic project object tree for the real projects structure by using the corba naming service , and laconically and effectively implement the management of the services and modules by using the location service . and we also propose a design which uses corba event service and borland midas to implement the distributed data service in a creative way and analyze the advantages and disadvantages of this design at the same time 并针对一些关键技术做了深入的讨论和分析，例如针对整个系统的分布式对象的管理，巧妙地借用corba的名字服务构造了同构于实际工程组织的工程对象树，同时使用定位服务简洁而有效的实现了对服务和模块的管理；针对分布式数据库的实现，创造性地提出了一种使用corba事件服务和borlandmidas组件来实现分布式数据服务的设计，并实现了这个设计，同时分析了这种设计的优劣。
Finally , exception handling technology was introduced . within the event service system , a object - oriented approach was brought forward to extract the work of event evaluating and correlating from traditional event service systems , which was implemented according to the semantic of application , so as to attach more flexibility to the event service system . a seriers of algorithms on event detection and subscription forwarding , etc . were introduced to provide efficient event service 在事件服务系统中，论文提出了一个面向对象的方法，把事件的评估及关联的工作从传统事件服务系统中分离出来，其具体实现根据应用语义来实现，从而使得事件服务系统更加灵活；论文还提出了关于事件检测以及订阅转发等的一系列方法来提供高效的事件服务。
Then , this thesis illuminates the design of the system and its architecture . at last , it describes how these basic theories were applied to developing the service system . in this section , some key points are explained in detail including the design and implementation of adapter interface in proxy layer , qos pertinent objects , event transfer , event filter , information exchange and the combination of multi - thread and asynchronous communication model 文章首先介绍该系统所要涉及到的理论基础，这些理论基础包括corba事件服务规范、 corba通知服务规范、异步通信模型、消息队列技术以及多线程技术等；接着对该系统的设计指导思想和体系结构进行说明；然后进一步阐述这些理论技术在本系统中的应用，着重叙述在系统的设计与实现时遇到的几个重要环节：代理层适配接口的设计与实现、 qos相关类的设计与实现、事件传送、事件过滤、供需消息交流以及多线程与异步通信模型的结合。
In forth chapter , it illuminates the services of corba , include naming service , event service , notifying service , transaction service and so on . it also illuminates the security in corba services and differences between com / dcom and corba . in fifth chapter , it gives an example which is a module of the telecom charging system with corba technology 第四章，主要讨论了corba的服务及应用技术，着重论述了corba的命名服务、事件服务、通知服务、对象交易服务，而且对corba服务的安全性也进行了介绍，在最后将com dcom与corba技术的特点进行了比较。
To increase the features of rrssms , we improved the reliability of application - level to build a more reliable asynchronous communication model over the existing corba event service , and presente d a technique of web - based active information publication supported by distributed object computing means embedded in web architecture . in this method application server can push information to the web client with the active information publication scheme 同时，为了提高web应用系统的实时性，以更适合远程监控系统的需要，在应用层对corba事件服务标准的可靠性作了改进，构建了中，一个可靠的异步通信模型，并结合对象web技术提供的分布式对象计算平台，实现了一个web主动信息发布机制，利用该机制，应用服务器可以主动把信息推送到web的客户端，提高了web系统的实时性。
A new distributed compute technique - corba object service , in which event service and naming service are the basic object service , can be used to accomplish a flexible configuration and integration of modules existed in the network architecture , and can provide an open platform for uah flight control components integrating . consequently uah would own the ability to on - line reconfigure and adapt to environmental change 利用corba对象服务? ?事件服务和命名服务是其中两个基本的对象服务? ?可实现运行在网络体系中组件的灵活配置和集成，为uah分布式飞行控制系统的集成提供开放式平台，从而实现了uah的在线重配和自适应能力。
