A Model-Based Systems Engineering Approach to Obtain Fault Trees for Failure Analysis Using SysML

Industries are constantly being challenged with project and system complexity and the different processes and approaches these convey. In addition, there may be a different number of stakeholders, areas of interest, and ambiguous communication among each of the interested shareholders. When new projects and systems are under development, there are decisions that need to be made related to the reliability of it that may rise issues and it is essential to be able to reduce and mitigate risks in the early stages before the cost of fixing them increases. As systems continue to grow in scale, Model-Based Systems Engineering (MBSE) has become the main approach to manage complexity and maintain consistency in system development. MBSE is an approach that is becoming particularly popular because it allows the generation of system models that help formally establish specification, system requirements, analysis, design, and verification and validation (V&V) activities throughout the development of the system life cycle while ensuring traceability. In this paper, a detailed review of an Automated Teller Machine (ATM) System design process implementation as a use case is presented using Systems Modeling Language (SysML) to support system semantics through an MBSE approach, and later develop a reliability analysis - Fault Tree Analysis (FTA) to help in system improvements and facilitate decision-making in the development of the system.