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What is Fault Tree Analysis (FTA)

Chapter 4
Cyber Security and Safety of Nuclear Power Plant Instrumentation and Control Systems
Deductive technique that starts by hypothesizing and defining failure events and systematically deduces the events or combinations of events that caused the failure events to occur.
Published in Chapter:
Requirements to Products and Processes for Software of Safety Important NPP I&C Systems
Vladimir Sklyar (National Aerospace University KhAI, Ukraine), Andriy Volkoviy (Mellanox Technologies Ltd., Kyiv R&D Center, Ukraine), Oleksandr Gordieiev (Banking University, Ukraine), and Vyacheslav Duzhyi (National Aerospace University KhAI, Ukraine)
Copyright: © 2020 |Pages: 35
DOI: 10.4018/978-1-7998-3277-5.ch004
Abstract
Features of software as a component of instrumentation and control (I&C) systems are analyzed. Attention is paid to the importance of functions performed by software and hazards of such software. Requirements for characteristics of software as a component of I&C systems are analyzed. Different regulatory documents are considered in order to disclose common approaches to the use of dedicated software and off-the-shelf software components. Classification of software, as well as classification of requirements, is described. Criteria of selection and structuring of requirements, as well as criteria for software verification, are defined. As long as the characteristics of software components directly depend on the quality of the processes of software development and verification, requirements for software life cycle processes are considered.
Full Text Chapter Download: US $37.50 Add to Cart
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Chapter 5
Decision Support Approach for Assessing of Rail Transport: Methods Based on AI and Machine Learning
The FTA method is also known as the Cause Tree. It is the most widely used method for analyzing the reliability, availability and safety of systems. The cause tree represents graphically (by logical AND and OR operators) the combinations of events that lead to the occurrence of a single adverse event; the latter constitutes the “first” event of the tree of causes and is determined by a Preliminary Hazard Analysis (PHA). This “deductive” process is continued until elementary events are obtained, independent of each other and of which the probability of occurrence is known.
Published in Chapter: Decision Support Approach for Assessing of Rail Transport: Methods Based on AI and Machine Learning; From: Handbook of Research on Decision Sciences and Applications in the Transportation Sector
Full Text Chapter Download: US $37.50 Add to Cart
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