Authors:
Philipp Lohmüller
;
Andrea Fendt
and
Bernhard Bauer
Affiliation:
Institute of Computer Science and University of Augsburg, Germany
Keyword(s):
Safety-Critical Systems, Dependability, Tradeoff Analysis, Multi-Criteria Decision Analysis, Multi-Concerns.
Related
Ontology
Subjects/Areas/Topics:
Hybrid Multi-Modeling Approaches
;
Methodologies, Processes and Platforms
;
Model-Driven Software Development
;
Software Engineering
;
Systems Engineering
Abstract:
Modern cars are equipped with a large number of electronic assistance systems such as Adaptive Cruise Control
(ACC) to improve road safety and driving comfort. These systems require a complex cross-linking, both
inside and outside the vehicle, e.g., by means of bus systems or wireless interfaces like Bluetooth. Thus, safety
of road users can endangered if the communication between these systems failed. Communication failures can
be affected by hacking attacks, e.g., delayed decelerating of an ACC system, thereby presenting a security and
timing vulnerability endangering safety of road users. Hence, in this paper safety is considered as primary
goal. Goals that contribute to achieve the primary goal can be in contradiction to each other under certain
circumstances. Therefore, an approach is proposed to model Safety, Security and Timing (SST) constraints to
guarantee maximum safety. Furthermore, a preventative risk assessment of the individual concerns including
a tradeoff analysis is
performed to enable the development of Safety-Critical Systems (SCS).
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