随后探讨了可生存系统的设计与实现问题，最后描述了系统可生存性的发展趋势。
Finally, the design and implementation of survivable system are discussed. The future development of system survivability is described.
本文对下一代网络的控制层的可生存性进行研究，主要是提出一种分析系统可生存性的方法和框架。
This dissertation studies network control layer survivability, mainly brings forward a method and frame of analyzing system survivability on control layer and application layer.
可生存性研究为这些有利于系统生存的技术提供了一个安全整合框架。
So, researches on the survivability pose a compound security structure for security technology.
可生存性评估是使用各种方法对目标系统进行定性及定量的生存性分析。
Survivability evaluation means using various methods to take qualitative and quantitative analysis of the target systems.
网络系统的可生存性已经成为一个热门的研究主题，该研究课题的思想是要保障系统关键服务的有效性。
Survivability of network system has become a hot research topic, and the core idea of the survivability research is to provide guaranteed effectiveness to critical services of system.
自适应策略受生物免疫原理的启发，通过控制网络服务的复制、迁移和消亡来提高系统的可生存性。
Inspired by biological immune principle, adaptation policy enhances system's survivability by controlling the network services' behaviours such as clone, death, migration and so on.
本系统的可生存性主要通过对客户端数据进行实时版本存储和版本数据的虚拟恢复来实现。
The right version of data will be found to the client by version time at the virtual recovery time.
基于不同的冗余技术对网络系统进行分类并分别建立随机数学模型，提出了基于不同应用需求的可生存性的定量评估方法。
Network systems are sorted according to the redundancy techniques adapted and corresponding stochastic models are constructed, survivability based on different application requirement are evaluated.
该文首先分析了可生存性与传统网络安全技术的差别，并给出了生存性的基本定义，然后介绍了可生存系统设计的两种设计方法，并对两种设计方法进行了对比分析。
And then this paper gives out the definition of survivability. Next it introduces two methods of survivability system design. Finally it analyzes the differences between the two methods.
该分析流程分为六个步骤，而这六个步骤可总结为系统定义、环境定义、可生存性测试和结果分析四个阶段。
The entire analysis process is composed of six steps, which can be concluded into four phases: system definition, environment definition, survivability test and result analysis.
虽然传统的安全措施提高了网络信息系统的安全性，但各种入侵事件还是不断的发生，为此必须考虑一种新的安全理念，这就是可生存性。
Though traditional security can improve network information system's security, kinds of intrusions remain as before. Then, we must consider a new security concept, and that is survivability.
可生存性的中心思想是即使在入侵成功后，甚至系统的重要部分遭到损害或摧毁时，系统依然能够完成任务，并能及时修复被损坏的服务。
Main idea of survivability is that the systems can achieve their main missions, and timely recovery the damaged services, even after intrusions succeed, the main components are damaged or destroyed.
对网络系统的生存能力进行量化评估，有助于对不同系统以及同一系统在不同环境下的可生存性做出准确的评价和比较。
Quantifying survivability of the network system helps to evaluate it exactly for either different systems or the same system in different environments.
基于冗余的入侵容忍数据库是由多个异构数据库服务器组成的，通过增加冗余单元实现数据库的可生存性和可用性，但是冗余会引起系统性能下降。
The intrusion tolerance database based on redundancy is made of several isomerous database servers. And by adding redundancy cell, it achieves the survival and availability of database.
基于冗余的入侵容忍数据库是由多个异构数据库服务器组成的，通过增加冗余单元实现数据库的可生存性和可用性，但是冗余会引起系统性能下降。
The intrusion tolerance database based on redundancy is made of several isomerous database servers. And by adding redundancy cell, it achieves the survival and availability of database.
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