Author(s)

B.W. Johnson, T. Smith, T. Belong, J.A. Profeta III, C.C. Nguyen, D. Bozzolo & T.C. Giras

Abstract

This paper summarizes the D_RAMP safety analysis methodology and demon- strates a typical application to a system. The safety is quantified in terms of the Mean Time Between hazardous Event (MTBHE). The summarized safety anal- ysis shown the necessary conditions to prove the MTBHE > 1x10^ years. 1.0 Introduction The Union Switch & Signal has been developing a tool to be used for the verifi- cation and validation, concurrent with the design of Real Time Computing Sys- tems (RTCSs). This toolkit is called D_RAMP (Design for Reliability, Availability, Maintainability, Performance and Safety). D_RAMP plays a cen- tral role in the V&V methodology and constitutes a novel approach to accessing and quantifying the

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