摘要
目前电信网络服务组合系统尚无可靠性控制机制,使得服务可靠性受到严重影响。这就要求服务提供商对其服务组合的可靠性进行建模评估。本文主要讨论面向可靠性的服务组合方法和潜在故障对系统可靠性的影响。建立服务组合系统的可靠性模型,分析影响服务系统可靠性的相关参数。本文提出一个新参数:系统恢复所需时间。这是在系统失效前必须考虑的重要参数,并分析该参数对系统可靠性的影响。
This paper discusses the reliability of the composite service system of the telecommunication network.The ways of service composition for the reliability and the effects of dormant faults on the reliability of the system are discussed.The model for reliability of the service composition system is established.It is pointed out that the time required for system recovery is an important parameter for the reliability of the system.
出处
《自动化技术与应用》
2009年第9期68-71,89,共5页
Techniques of Automation and Applications
基金
南通大学科研基金项目(编号08Z025)
关键词
服务组合
潜在故障
单故障假设
冗余
马尔可夫模型
可靠性
service composition
dormant fault
single-fault assumption
redundancy
Markov modeling
reliability
