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Enhancing Data Validation for Safety-Critical Railway Systems

机译:加强安全关键铁路系统的数据验证

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The safe behavior of railway software systems depends undeniably on the correctness of all data used by its components. Formal verification methods are nowadays successfully applied for the assessment of safety-critical systems in order to avoid inconsistencies, ambiguities or incompleteness. Unfortunately, these methods are rarely used by data validation tools, although they seem well-suited for this purpose. In this regard, RATP designed OVADO, a generic formal data-validation tool, which has been used in several projects covering a variety of data. This paper gives an overview of the past, present and future developments, applications and improvements of OVADO. It emphasizes how OVADO allowed RATP to be more efficient in its data validation process and how new enhancements will improve its usability, reliability and efficiency. OVADO's ease-of-use is, thereby, improved through the development of the B-OVADO editor. Additionally, the process is optimized with the definition of a common library for CBTC applications.
机译:铁路软件系统的安全行为不可否认地取决于其组件使用的所有数据的正确性。如今,正式的验证方法已成功应用于对安全性至关重要的系统的评估,以避免出现不一致,歧义或不完整的情况。不幸的是,尽管这些方法似乎非常适合于此目的,但数据验证工具很少使用这些方法。在这方面,RATP设计了OVADO,这是一种通用的正式数据验证工具,已在涉及各种数据的多个项目中使用。本文概述了OVADO的过去,现在和将来的发展,应用和改进。它强调了OVADO如何使RATP在其数据验证过程中更加有效,以及新的增强功能如何改善其可用性,可靠性和效率。通过开发B-OVADO编辑器,可以改善OVADO的易用性。此外,通过为CBTC应用程序定义公共库来优化该过程。

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