On Creation and Analysis of Reliability Models by Means of Stochastic Timed Automata and Statistical Model Checking: Principle

reliability, model, analysis, fault tolerant, FT, stochastic timed automata, STA, statistical model checking, SMC, UPPAAL SMC, probability, distribution, bathtub, fault, transient, permanent, intermittent, rate, scenario, tripple modular redundancy, TMR

The paper presents a method of creation and analysis of reliability models by means of stochastic timed automata (STA) and statistical model checking (SMC) approach available in the UPPAAL SMC tool; a special attention is paid there to reliabilty of electronic systems. The method can be seen as an alternative to classical analytic approaches based on instruments such as fault-tree or Markov reliability models. Main goal of the paper is to show that - taking the advantage of the statistical model checking - the reliability analysis of systems can be facilitated even for adverse conditions such as inconstant failure (hazard) rate of inner system components. In the paper, basic terms and principles related to modeling and analysis of dynamic systems by means of the UPPAAL SMC tool are summarized, followed by a short demonstration of its practical applicability and summary of results achieved in the dependability area.