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Software criticality analysis of COTS/SOUP

机译：COTS / SOUP的软件重要性分析

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摘要

This paper describes the Software Criticality Analysis (SCA) approach that was developed to support the justification of using commercial off-the-shelf software (COTS) in a safety-related system. The primary objective of SCA is to assess the importance to safety of the software components within the COTS and to show there is segregation between software components with different safety importance. The approach taken was a combination of Hazops based on design documents and on a detailed analysis of the actual code (100 kloc). Considerable effort was spent on validation and ensuring the conservative nature of the results. The results from reverse engineering from the code showed that results based only on architecture and design documents would have been misleading.
机译：本文介绍了软件关键性分析（SCA）方法，该方法旨在支持在与安全相关的系统中使用商用现货软件（COTS）的合理性。 SCA的主要目的是评估COTS中软件组件对安全性的重要性，并表明在具有不同安全重要性的软件组件之间存在隔离。采取的方法是根据设计文档和对实际代码（100 kloc）的详细分析将Hazops组合在一起。在验证和确保结果的保守性上花费了大量的精力。该代码的反向工程结果表明，仅基于体系结构和设计文档的结果将产生误导。

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