TSAR - Tool for System Availability and Reliability Analysis
نویسندگان
چکیده
The article describes the TSAR tool for system availability and availability analysis. Failure and repair model is based on Markov chain defined by states and transitions. Each state can be interpreted as working or broken. Transitions are defined by transition probabilities and transition time probability density functions. Availability and reliability analysis is based on discrete event Monte Carlo simulation or Abraham's analytic algorithm. System state being a function of comprised module states serves as the base of simulation calculation, while the analytical calculation uses logical terms representing all paths between start and end modules. The tool is implemented in the Cosmos simulation kernel and Cosmos GUI.
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