Comparison of FTA Tools to Develop a Modern Tool for Small Teams and Teaching

The aim of this paper is to describe and compare existing and new tools and approaches for calculating dependability parameters using fault tree analysis. The paper is primarily focused on individuals or small teams in the fields of study or science. The comparison was conducted among three different applications and manual calculations. Two of them are well-established legacy tools, while the last one is our new approach - web solution: an application designed specifically for this target user group. All approaches of analysis are detailed on two basic examples taken from the literature, where the web application stands out primarily in user-friendliness and analysis speed. Furthermore, the mathematical calculations created by our proposed web application are easily verifiable and validated owing to the generation of a comprehensive notebook in Wolfram Mathematica. The paper concludes by discussing potential avenues for further enhancement and expansion of the web application’s functionalities.