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Model-Based Design of Service-Oriented Architectures for Reliable Dynamic Reconfiguration

Journal Article
2020-01-1364
ISSN: 2641-9645, e-ISSN: 2641-9645
DOI: https://doi.org/10.4271/2020-01-1364
Published April 14, 2020 by SAE International in United States
Model-Based Design of Service-Oriented Architectures for Reliable Dynamic Reconfiguration
Sector:
Citation: Oszwald, F., Obergfell, P., Liu, B., Pazmino Betancourt, V. et al., "Model-Based Design of Service-Oriented Architectures for Reliable Dynamic Reconfiguration," SAE Int. J. Adv. & Curr. Prac. in Mobility 2(5):2938-2947, 2020, https://doi.org/10.4271/2020-01-1364.
Language: English

Abstract:

Service-oriented architectures (SOAs) are well-established solutions in the IT industry. Their use in the automotive domain is still on the way. Up to now, the automotive domain has taken advantage of service-oriented architectures only in the area of infotainment and not for systems with hard real-time requirements. However, applying SOA to such systems has just started but is missing suitable design and verification methodologies. In this context, we target to include the notion of model-based design to address fail-operational systems. As a result, a model-based approach for the development of fail-operational systems based on dynamic reconfiguration using a service-oriented architecture is illustrated. For the evaluation, we consider an example function of an automatically controlled braking system and analyze the reconfiguration time when the function fails. The reconfiguration time, together with the worst-case execution time (WCET), was determined by a model-based calculation and by simulation. In summary, the proposed approach applied to dynamically reconfigurable systems can meet the design requirements of the ISO 26262.