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Timing-Failure Risk Assessment of UML Design Using Time Petri Net Bound Techniques

机译:使用时间Petri网约束技术的UML设计的时序失效风险评估

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摘要

Software systems that do not meet their timing constraints can cause risks. In this work, we propose a comprehensive method for assessing the risk of timing failure by evaluating the software design. We show how to apply best practises in software engineering and well-known Time Petri Net (TPN) modeling and analysis techniques, and we demonstrate the effectiveness of the method with reference to a case study in the domain of real-time embedded systems. The method customizes the Australian standard risk management process, where the system context is the UML-based software specification, enriched with standard MARTE profile annotations to capture nonfunctional system properties. During the risk analysis, a TPN is derived, via model transformation, from the software design specification and TPN bound techniques are applied to estimate the probability of timing failure. TPN bound techniques are also exploited, within the risk evaluation and treatment steps, to identify the risk causes in the software design.
机译:不符合时间限制的软件系统可能会导致风险。在这项工作中,我们提出了一种通过评估软件设计来评估定时失败风险的综合方法。我们展示了如何在软件工程以及著名的时间Petri网(TPN)建模和分析技术中应用最佳实践,并通过参考实时嵌入式系统领域的案例研究来证明该方法的有效性。该方法可自定义澳大利亚标准风险管理流程,其中系统上下文是基于UML的软件规范,并丰富了标准MARTE配置文件注释,以捕获非功能性系统属性。在风险分析过程中,通过模型转换从软件设计规范中得出TPN,并应用TPN绑定技术来估计定时失败的可能性。在风险评估和处理步骤中,还利用了TPN绑定技术来确定软件设计中的风险原因。

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