IEC 61508软件安全完整性等级的计算方法

2011 IEEE 17th Pacific Rim International Symposium on Dependable Computing Pub Date : 2011-12-12 DOI:10.1109/PRDC.2011.50

T. Fujiwara, M. Kimura, Yoshinobu Satoh, S. Yamada

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引用次数: 7

摘要

在功能安全标准(IEC 61508)中，定义了建立安全相关系统的开发方法和定量分析方法。然而，仅推荐开发方法来建立安全相关系统的软件。也就是说，软件的安全完整性水平仅取决于应用于实际安全相关系统开发的开发方法的数量。这样评价安全完整性水平是不合理的，因为要考虑各种风险因素。本文提出了软件安全完整性等级的计算方法。特别提出了在大型系统开发中应用多年的软件可靠性增长模型的计算方法。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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A Method of Calculating Safety Integrity Level for IEC 61508 Conformity Software

In the functional safety standard (IEC 61508), development methods and quantitative analytical methods are defined for establishment of safety-related systems. However, only development methods are recommended to establish the software of safety-related systems. That is, the safety integrity level for software is determined only by the number of the development methods applied to practical safety-related system development. This is not reasonable to evaluate the safety integrity level, because various risk factors should be taken up. In this paper, we propose how to calculate the safety integrity level for software. Especially, we propose the calculation method based on software reliability growth models that have been utilized for many years in the large-scale system development.

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2011 IEEE 17th Pacific Rim International Symposium on Dependable Computing

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