体系结构

Catching on the general structure is more important than the algorism and data structure.

因此，对企业信息系统的总体结构的把握，即对体系结构的关注显得要比对程序的算法和数据结构的关注更为重要。

The traditional NC system is based on a kind of closed architecture. Such architecture makes most of present NC systems not adaptable to the changes and competition of manufacturing industry. It can not either meet the requirement of the development of modern manufacturing toward an information-based and agile model.

传统的数控系统体系结构是一种封闭式的结构，这种结构既不能适应制造业市场的变化与竞争，也不能满足现代制造业向信息化和敏捷制造模式发展的需要。

The main work and innovation of this dissertation are: 1. The network management domain-specific mobile agent system architecture and mobile agent model are proposed and described in details. The lifecycle of mobile agent is described by using state diagram. The layered security model is introduced. The mobility model is distinguished by the complete and partial one as well as the explicite mobility and implicite one. 2. Aimming at the complexity and heterogeneity of the network, the abstract network entity is presented and defined in details. The mobile agent is also classified and studied from the point of the mobile mechinisim along with the resposibility view. The NMBMA, which the main component is ANE, is put forward and described by using organizational, informationl, computational and implementary model. 3. The two architectures, NMBMA and Client/Server-based one, are compared and analyzed quantitatively and qualitatively. 4. The prototype based on the above NMBMA is designed and some examples are described in the prototype.

主要工作与创新是：提出并详细描述了面向网络管理领域的MAS结构和流动软件代理模型及其内部结构，并采用状态图描述了流动代理的生命周期；提出了层次的安全模型；从数据管理和实现方式两个方面，区分了流动模型即完全流动和部分流动以及显式流动和隐式流动；针对网络的异构性和复杂性，提出了抽象网络实体ANE的概念，并进行了定义；从流动机制和职能两个角度，对流动代理进行了分类研究；以ANE为主要部件，从组织模型、信息模型、通讯模型、实施模型四个侧面描述了NMBMA；定量和定性比较分析了NMBMA与传统的基于Client/Server模型网络管理体系结构；通过一个原型系统的设计和网络管理实例，验证了NMBMA是可行的。

We begin with an introduction of the research background, the difference between traditional network management and security-oriented network management, and the contributions of this paper. Then we present the structure and the principles of the SIMP: we put forward to a functional and hierarch model based on JMX specification and Struts technology And a JMX-based network management model.

本文首先介绍了课题的背景、网络安全管理相对于网络管理的特点和本文的研究内容，针对传统网络管理的不足，提出了安全集中管理系统的总体结构、组成及工作原理：安全集中管理平台的体系结构采用JMX技术作为系统的集成总线，将各管理功能模块作为JMX管理构件，实现了系统的组件化、模块化的开发；层次结构采用了基于Struts的MVC架构模式，底层数据库采用了对象关系映射技术，提高了系统的可维护性和可扩展性。

The system of managing platform balance adopt the new architecture that C/ S and B/ S combine together, applying the components technique (know as COM+) and the ActiveX technique in server and client respectively, thus developing efficiently applied system of the safety.

地磅称量系统采用C/S结构和B/S结构相结合的新体系结构，将组件技术COM+和ActiveX技术分别应用在服务器端和客户端，从而开发出高效、安全的应用系统。

The system of managing platform balance adopt the new architecture that C/ S and B/ S combine together, applying the components technique (know as COM+) and the ActiveX technique in server and client respectively, thus deve

地磅称量系统采用C/S结构和B/S结构相结合的新体系结构，将组件技术COM+和ActiveX技术分别应用在服务器端和客户端，从而开发出高效、安全的应用系统。

I have probed into the archetecture of network management, and on the base of it I have analyzed the MIB and SMI of SNMP and the information structure of SNMP in detail.

探讨了对网络管理的体系结构在此基础上对SNMP的管理信息库、管理信息结构和SNMP消息结构进行了比较详细的分析。

The research improves the architecture stability starting with studying the intrusion detection architecture on the base of CVE list; the reasoning under uncertainty was utilized in superstratum expert system; the character of system structure and denial of service attacks was considered and concerning arithmetic is designed in order that system can make full use of the information .

本文以CVE列表为基础，从入侵检测系统的体系结构入手，改进了结构的稳定性；对上层的专家系统采用不确定性推理；并考虑系统结构和拒绝服务攻击的特征，设计了关联算法，使系统尽可能的挖掘可用的信息。

For the coherence in metadata, a serverless architecture model based on all the data and metadata is adopted because they can be storaged in all place and can be dynamicly transferred; The associative mode of the disc metadata's journal structure and the memory metadata's journal structure can turn away the timing waste in scanning the enormous file system by fsck; Afterwards a intercalating checkpoint algorithm and a rollback recovery algorithm based on the metadata fault tolerance in cluster file system is implemented; A fetched stochastic process model is setup to analyze availability of this system, it can reduce the inspecting fault time and then they support high availability.

为了达到复杂的元数据管理一致性，采用了一个无集中式服务器的体系结构，保证所有的数据和元数据能够存放到系统的任意地方，并且在操作的过程中可以动态迁移；采用元数据的磁盘日志结构和内存日志结构相结合的方式对元数据进行管理，减少了fsck对庞大的文件系统中元数据的扫描时间；为了实现故障恢复，提出了元数据容错的设置检查点算法和回卷恢复的算法，提高了文件系统元数据服务的可用性；给出了基于元数据故障的随机过程模型，可以通过减少检错时间提高文件系统的可用度。

This dissertation lucubrates the architecture of ATS, hierarchical structure and resource models of testing software and the physical structure of hardware.

论文对ATS体系结构、测试软件层次结构及资源模型、硬件物理结构进行了深入研究。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。