Quantitative risk analysis of safety–critical embedded systems

Developing safety–critical embedded systems almost always includes a significant emphasis on risk analysis. Risk analysis is still a largely qualitative and manual method of analysis. In this paper, we propose a method for the quantitative analysis method of embedded systems based on the Architecture Analysis and Design Language (AADL) model. First, we extend the Error Model Annex with the RFMEA (Risk-based Failure Mode Effect Analysis) property to express the error effect formally, and then, a risk-based quantitative analysis method is proposed to implement the automatic generation of an RFMEA table. Finally, an eclipse plug-in of this method is implemented and a case study is used to demonstrate its feasibility.