Meta-Adaptation Strategies for Adaptation in Cyber-Physical Systems
Modern Cyber-Physical Systems (CPS) not only need to be dependable, but also resilient to and able to adapt to changing situations in their environment. When developing such CPS, however, it is often impossible to anticipate all potential situations upfront and provide corresponding tactics. Situations that lie out of this “envelope of adaptability” can lead to problems that range from single component malfunctioning to complete system failure. The existing approaches to self-adaptation cannot typically cope with such situations as they still rely on a fixed set of tactics, which in case of complex systems does not guarantee achieving correct functionality. To alleviate this problem, we propose the concept of meta-adaptation strategies, which extends the limits of adaptability of a system by constructing new tactics at runtime to reflect the changes in the environment. The approach is demonstrated on an existing architecture-based self-adaptation method and exemplified by two concrete meta-adaptation strategies.
KeywordsMeta-adaptation strategies Adaptation tactics Cyber-Physical systems
Unable to display preview. Download preview PDF.
- 3.Filieri, A., Ghezzi, C., Leva, A., Maggio, M., Milano, P.: Self-adaptive software meets control theory: a preliminary approach supporting reliability requirements. In: Proc. of ASE 2011, pp. 283–292. IEEE (2011)Google Scholar
- 4.Elkhodary, A., Esfahani, N., Malek, S.: FUSION: a framework for engineering self-tuning self-adaptive software systems. In: Proc. of FSE 2010, pp. 7–16. ACM (2010)Google Scholar
- 5.Yuan, E., Esfahani, N., Malek, S.: Automated mining of software component interactions for self-adaptation. In: Proc. of SEAMS 2014, pp. 27–36. ACM (2014)Google Scholar
- 8.Esfahani, N., Kouroshfar, E., Malek, S.: Taming uncertainty in self-adaptive software. In: Proc. of SIGSOFT/FSE 2011, pp. 234–244. ACM (2011)Google Scholar
- 9.Gerostathopoulos, I., Bures, T., Hnetynka, P., Keznikl, J., Kit, M., Plasil, F., Plouzeau, N.: Self-Adaptation in Cyber-Physical Systems: from System Goals to Architecture Configurations. Department of Distributed and Dependable Systems, D3S-TR-2015-02 (2015)Google Scholar
- 10.Keznikl, J., Bures, T., Plasil, F., Gerostathopoulos, I., Hnetynka, P., Hoch, N.: Design of ensemble-based component systems by invariant refinement. In: Proc. of CBSE 2013, pp. 91–100. ACM (2013)Google Scholar
- 11.Bures, T., Gerostathopoulos, I., Hnetynka, P., Keznikl, J., Kit, M., Plasil, F.: DEECo – an ensemble-based component system. In: Proc. of CBSE 2013, pp. 81–90. ACM (2013)Google Scholar
- 12.Gerostathopoulos, I., Bures, T., Hnetynka, P., Hujecek, A., Plasil, F., Skoda, D.: Meta-adaptation strategies for adaptation in cyber-physical systems. Department of Distributed and Dependable Systems, D3S-TR-2015-01 (2015)Google Scholar