Generation of Adaptation Strategies for Dynamic Reconfiguration of a System of Systems

A system of systems (SoS) is comprised of constituent systems that interact with each other to achieve a common goal. An SoS operates in an environment with dynamically changing external conditions. Therefore, supporting the resilience of the SoS is crucial to sustain goal achievement at run-time. One way to support this resilience is to generate an adaptation strategy at run-time that guides the dynamic reconfiguration of the SoS. Therefore, adaptation strategies should be effectively generated within a reasonable time at run-time to conduct the dynamic reconfiguration in time. To satisfy this requirement, we propose an adaptation strategy generation approach that consists of two phases. 1) At design time, our approach constructs a knowledge base that contains adaptation strategies for expected environmental conditions. 2) At/during run-time, it generates adaptation strategies by utilizing the knowledge base. Through a case study, we show that our approach can generate adaptation strategies effectively at run-time.