Generation of adaptation strategies for dynamic reconfiguration of a system of systems

Abstract

A system of systems (SoS) comprises constituent systems, that interact one another to achieve a common goal. The SoS will be operated in an environment with dynamically changing external conditions. Therefore, supporting the resilience of the SoS is important to sustain goal achievement at run-time. One way to support resilience is to generate an adaptation strategy at run-time that guides a dynamic reconfiguration of the SoS. However, effective adaptation strategies should be generated in a reasonable time at run-time to conduct the dynamic reconfiguration in time. To satisfy this requirement, we propose an approach that consists of two phases: 1) Construct a knowledge base that contains adaptation strategies for expected environmental conditions. 2) Generate adaptation strategies by utilizing the knowledge base. Through experimental results, we show that our approach can generate more effective adaptation strategies than an approach that does not use the knowledge base under the same search time at run-time.