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IAEA Nuclear Energy Series No. NP-T-3.27
English STI/PUB/1808 | 978-92-0-101218-0
80 pages | 10 figures | € 38.00 | Date published: 2018This publication defines a framework that represents the state of the art of assessment methodologies for safety and instrumentation and control software used at nuclear power plants. It describes an approach for developing and communicating assessments based on claims, arguments and evidence. The assessment of software dependability, which encompasses properties such as safety, reliability, availability, maintainability and security, is an essential and challenging aspect of the safety justification. Information is given on guiding principles to provide the basis for defining an assessment strategy and implementing the assessment process. Sources of evidence for the assessment are provided and lessons learned from past digital instrumentation and control system implementation in areas such as software development, operational usage, regulatory review and platform certification are also described.
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