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Systems engineering approach to functional safety and cyber security of industrial critical installations

Abstract

This chapter addresses the systems engineering approach to integrated functional safety and cybersecurity analysis and management regarding selected references, standards and requirements concerning critical installations and their industrial automation and control system (IACS). The objective is to mitigate the vulnerability of industrial installations that include the information technology (IT) and the operational technology (OT) to reduce relevant risks. This approach includes verifying the safety integrity level (SIL) of defined safety functions, and then to check the level obtained taking into account the security assurance level (SAL) of particular domain, such as a safety related control system (SRCS), in which given safety function is to be implemented. The SAL is determined based on a vector of fundamental requirements (FRs). The method proposed uses defined risk graphs for the individual and/or the societal risk, and relevant risk criteria, for determining the SIL required of given safety function, and probabilistic models to verify the SIL achievable for the SRCS architecture to be designed and then implemented in an industrial installation.

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Details

Category:
Conference activity
Type:
publikacja w wydawnictwie zbiorowym recenzowanym (także w materiałach konferencyjnych)
Title of issue:
Safety and Reliability of Systems and Processes
Language:
English
Publication year:
2020
Bibliographic description:
Kosmowski K.: Systems engineering approach to functional safety and cyber security of industrial critical installations// Safety and Reliability of Systems and Processes/ Gdynia Maritime University: , 2020,
DOI:
Digital Object Identifier (open in new tab) 10.26408/srsp-2020-10
Verified by:
Gdańsk University of Technology

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