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Reviewed article

Multi-Fragmental Availability Models of Critical Infrastructures with Variable Parameters of System Dependability

Vyacheslav Kharchenko, Oleg Odarushchenko, Valentina Odarushchenko
How to cite:
Vyacheslav Kharchenko, Oleg Odarushchenko, Valentina Odarushchenko
"Multi-Fragmental Availability Models of Critical Infrastructures with Variable Parameters of System Dependability"
Information & Security: An International Journal,
28
no. 2
no. 20
(2012):
248-265.
http://dx.doi.org/10.11610/isij.2820

Multi-Fragmental Availability Models of Critical Infrastructures with Variable Parameters of System Dependability

28.20_Kharchenko_Odarushchenko.pdf

Authors:

Vyacheslav Kharchenko, Oleg Odarushchenko, Valentina Odarushchenko

Source:

Information & Security: An International Journal,
Volume: 28,
Issue2,
p.248-265
(2012)

Keywords:

business-critical infrastructure, defects, dependability indicators, evolu¬tion of software, fault-tolerant architectures, IT-infrastructures, macrograph., Markov and semi-Markov chains, Modelling, safety block diagrams, variable parameter

Abstract:

This paper presents the development of the MFMC-based methodology and technique for modelling and quantitative availability assessment of critical IT-infrastructure consisting of maintained and partially unmanned systems. It takes into consideration a variation of system and component parameters and, in particular, variation of failure rates caused by detection and elimination of design faults.
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