International Journal For Multidisciplinary Research

E-ISSN: 2582-2160   •   Impact Factor: 9.24

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Safety-Critical Software Failure Prevention Using Defence-in-Depth Approach

Author(s) Abdalla M. Khattab, Hany Sallam, Ehab Shafie
Country Saudi Arabia
Abstract In the nuclear field, software-based systems are of increasing importance to safety for both research reactors and Nuclear Power Plants (NPPs) as their use is increasing in both newly installed and refurbished old facilities. These software-based systems are used in safety systems, such as the reactor protection systems, and safety-related applications, such as some functions of the process control systems and the monitoring systems. Taking into account the criticality and severity of such systems, these systems are known as safety-critical software systems.
The reliability of safety-critical software is crucial for ensuring nuclear safety. Reliability is one of the most important requirements of software-based systems. For safety-critical software systems, it is not enough to depend on testing to ensure that the system will not fail and if it failed, it will fail-safe. Although defence-in-depth (DiD) strategy is used in designing and developing many systems in the nuclear field to ensure the fail-safe of these systems, this strategy is still not used in developing safety-critical software systems used in NPPs and research reactors. This paper proposes a new software fault-tolerant methodology based on using the DiD strategy. The proposed methodology is a novel technique to ensure software safety.
Keywords Safety-critical software systems; defense-in-depth; fail-safe; fault tolerant.
Field Computer > Network / Security
Published In Volume 7, Issue 1, January-February 2025
Published On 2025-01-04
Cite This Safety-Critical Software Failure Prevention Using Defence-in-Depth Approach - Abdalla M. Khattab, Hany Sallam, Ehab Shafie - IJFMR Volume 7, Issue 1, January-February 2025.
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E-ISSN 2582-2160
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