Modeling of correct self-adaptive systems: a graph transformation system based approach
CSTST '08 Proceedings of the 5th international conference on Soft computing as transdisciplinary science and technology
MBEERTS'07 Proceedings of the 2007 International Dagstuhl conference on Model-based engineering of embedded real-time systems
Formal real-time model transformations in MOMENT2
FASE'10 Proceedings of the 13th international conference on Fundamental Approaches to Software Engineering
Graph transformations for MDE, adaptation, and models at runtime
SFM'12 Proceedings of the 12th international conference on Formal Methods for the Design of Computer, Communication, and Software Systems: formal methods for model-driven engineering
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The performance of autonomous vehicles could be drastically improved if ad-hoc networking and suitable real-time coordination is employed to optimize and improve the joint behavior of multiple autonomous units. However, due to ad-hoc connections and the real-time interaction the correctness and safety of such coordinated autonomous units is very hard to ensure. In this paper we present how service-oriented real-time coordination can be employed to achieve this goal. Based on the proper real-time coordination between two or more vehicles captured by a service contract, we focus on structural changes and the instantiation and termination of service contracts which is a crucial prerequisite for a safe system operation. We present how the structural changes and the service contract creation/deletion can be modeled by a well-defined UML subset consisting of class and object diagrams with collaborations as well as well-defined behavioral rules can be verified taking the dynamic structural changes due to the ad-hoc networking as well as the real-time coordination into account. The new verification technique is outlined and the application of the technique for an application example is presented.