信息资源共享系统可靠性模型的研究

信息资源共享系统可以充分利用信息的传递性、共享性,支持异地协同工作,使人们获取信息更为经济、便利、迅速。信息资源共享系统有其自身的脆弱性,系统安全可靠是最重要、最基本的需求。提高系统可靠性,预防不可靠因素是信息资源共享系统设计的关键之一。笔者提出了信息资源共享系统可靠性的概念。由信息资源共享系统可靠性理论导出信息资源共享系统可靠度,建立了信息资源共享系统可靠性优化的多目标数学规划模型。为信息资源共享系统可靠性建立了定量分析方法。最后以可靠度、成本和时间3个优化目标为例,进行了计算、分析。为信息资源共享系统可靠性设计提供了新方法。

Study on Reliability of Information Resource Sharing System

The information resources sharing system makes the use of good transmit attribute and sharing attribute of the information. The computer-aided network supports the corporation to work coordinately and synchronously, and to share information economically, conveniently and rapidly. However, the information resources sharing system has its own weak points, among them the security and reliability are the most important ones. The crucial points in the design of information resources sharing system are to reinforce the reliability and to exclude the unreliable factors. The concept of reliability of information resource sharing system is discussed. From the reliability theory, the reliability of information resource sharing system is derived. A mathematical programming model of multiple targets optimized reliability is established, by which a quantitative analytical method for the system is set up. Calculation and analysis are made taking reliability, cost and time as three optimized targets. A new method for reliability design is provided for the information resources sharing system.