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Today functional safety is not an optional part of a vehicle; it is a must that should be taken into account throughout the development process. Fifteen years ago, the first functional safety concepts appeared, and since then technologies have changed in order to fulfill emission standards and client requirements. In parallel, electronic components and vehicle architectures have become increasingly complex in proportion to this evolution. As a result, hazards due to hardware or software failures have increased exponentially, which has led automotive companies to define monitoring concepts and standards. Over recent years, manufacturers have joined efforts to harmonize their solutions in order to ensure the same level of safety. This has led to the creation of standards such as ISO 26262 or recommendations like E-Gas whose purpose is to give recommendations in terms of the development process and monitoring of a vehicle.