Safety enhancement for distributed automotive software system

Abstract

Software safety plays a significant role in safety critical systems as an advanced vehicle driver assistant sub system in automobiles like passenger cars and in various other domains like aircraft flight control, nuclear system and medical systems. The software for such safety critical system should deal with hazard analysis in full to ensure the deployed software is risk free and fail safe. Hazard is a state or a situation that causes threat to life which will leading to an accident. Identification of any hazard analysis should be taken up early from system life cycle to ensure safety of all the system states. Software safety is a subset of system reliability or a subset of system security with the safety and security as closely related quality attributes. The important difference between safety and security is that the security focuses on malicious actions whereas safety is concerned with well-intended actions. The multi-vendor software for the critical automobile functionalities and its behavior over untoward incidents is to be designed, embedded and deployed with enhanced safety features. The driver assistance components and dynamic crash alert sub system are to be modeled in a computational logic to ensure the software components communicate over the corresponding interfaces on the basis of the context of abnormal manual incidents in an accident zone to promote functional safety. Navigation and monitoring of passenger cars by the distributed software application ensures an enhanced integrated safety as in-safety through traceability by invoking the influence of in-connect components and in-absence of software components in the automotive system. The overall enhanced safety before and after accidents is also addressed in terms of crashworthiness and collision avoidance and post-crash alert features through a safer design of parallel processing with the help of multi core embedded processors like GPUs. newline