Visible to the public AvTA Based Assessment of Dependability Considering Recovery After Failures and Attacks on Vulnerabilities

TitleAvTA Based Assessment of Dependability Considering Recovery After Failures and Attacks on Vulnerabilities
Publication TypeConference Paper
Year of Publication2019
AuthorsKharchenko, Vyacheslav, Ponochovniy, Yuriy, Abdulmunem, Al-Sudani Mustafa Qahtan, Shulga, Iryna
Conference Name2019 10th IEEE International Conference on Intelligent Data Acquisition and Advanced Computing Systems: Technology and Applications (IDAACS)
Date Publishedsep
ISBN Number978-1-7281-4069-8
KeywordsATA technique, Attack Tree Analysis, availability tree analysis, AvTA models, Building Automation System, computer security, criticality oriented analysis, cyber security subtrees, dependability assessment, failure analysis, FMEA, FMECA, Hardware, ICS recovery, IMECA, instrumentation and control system, instrumentation and control systems, maintenance engineering, OR gates, probabilities, probability, pubcrawl, reliability, resilience, Resiliency, security of data, Software, software failures, software fault tolerance, software reliability, SREs, successful recovery events, System recovery, trees (mathematics)

The paper describes modification of the ATA (Attack Tree Analysis) technique for assessment of instrumentation and control systems (ICS) dependability (reliability, availability and cyber security) called AvTA (Availability Tree Analysis). The techniques FMEA, FMECA and IMECA applied to carry out preliminary semi-formal and criticality oriented analysis before AvTA based assessment are described. AvTA models combine reliability and cyber security subtrees considering probabilities of ICS recovery in case of hardware (physical) and software (design) failures and attacks on components casing failures. Successful recovery events (SREs) avoid corresponding failures in tree using OR gates if probabilities of SRE for assumed time are more than required. Case for dependability AvTA based assessment (model, availability function and technology of decision-making for choice of component and system parameters) for smart building ICS (Building Automation Systems, BAS) is discussed.

Citation Keykharchenko_avta_2019