Comparison of modeling formalisms for Safety Analyses: SAML and AltaRica

Many states/transitions formalisms have been proposed in the literature to perform Safety Analyses. In this paper we compare two of them: SAML and AltaRica. These formalisms have been developed by different communities. Their “look-and-feel” are thus quite different. Yet, their underlying mathematical foundations are very similar: both of them rely on state automata. It is therefore of interest to study their ability to assess the reliability of systems, their respective advantages and drawbacks and to seek for opportunities of a cross fertilization.