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We discuss the initial phases of software development of a real industrial safety-related device in the railway application domain. In particular, to achieve greater confidence in the system, we illustrate the development of the system architecture (using a standard model domain-specific language), the computation of the safety integrity level and the calculation of the reliability of the whole system. We reiterate the safety analysis on the sub-systems. The proposed methodology has found immediate industrial applications.
Date of Conference: 4-7 May 2010