On Failure Propagation in Component-Based Software Systems
On Failure Propagation in Component-Based Software Systems
复制标题
基于组件的软件系统中的故障传播
DOI：
10.1109/qsic.2008.46
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发表时间：
2008
期刊：
影响因子：
--
通讯作者：
Mohammad Zulkernine
中科院分区：
文献类型：
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作者：
Atef Mohamed;Mohammad Zulkernine
确保基于组件的软件系统（cbss）的可靠性对于其在大规模和安全关键系统中的有效应用至关重要。然而，只有很少的技术在系统架构中考虑故障传播以进行系统可靠性评估。这些技术只关注通过组件接口传播的内容故障。因此，基于现有技术的CBSS体系结构评估没有考虑所有故障类型对系统可靠性的影响。本文提出了一种针对cbss的故障传播分析技术。本文基于体系结构服务路由（ASRs）分析故障传播。ASR是通过接口连接的组件序列。我们讨论了相对于系统组件的asr属性，并提出了它们对故障传播的影响，从而对cbss的可靠性产生影响。进一步分析确定了故障在组件间传播的上下界，并给出了系统可靠性与体系结构属性之间的一些关系。我们的技术不局限于任何失效类型，它考虑了失效散射和掩蔽。因此，与其他工作不同，所提出的技术更准确地代表了cbss中故障传播的实际方面。该技术还可以在cbss的早期设计阶段实现可靠设计，并在运行阶段定位部件故障。我们根据对系统可靠性的影响来比较不同的示例架构。
Ensuring reliability in component-based software systems (CBSSs) is important for their effective applications in large scale and safety critical systems. However, only few techniques consider failure propagation in system architectures for system reliability assessment. Those techniques focus only on content failure propagation through component interfaces. Therefore, the evaluation of CBSS architectures based on the current techniques fails to consider the impacts of all failure types on system reliability. In this paper, we present a failure propagation analysis technique for CBSSs. We analyze failure propagation based on architectural service routes (ASRs). An ASR is a sequence of components that are connected through interfaces. We discuss the attributes of ASRs with respect to system components and present their impacts on failure propagation and consequently on the reliability of CBSSs. Further analysis determines upper and lower bounds of failure propagation among components and shows some relationships between system reliability and architectural attributes. Our technique is not limited to any failure type, and it considers failure scattering and masking. Therefore, unlike other works, the proposed technique demonstrates more accurate representation of the practical aspect of failure propagation in CBSSs. The technique can also be used to achieve reliable designs in the early design stages of CBSSs and to localize component faults in the operational stage. We compare different example architectures based on their impacts on system reliability.