Requirements-driven self-repairing against environmental failures

Dong, Rui-Zhi; Peng, Xin; Yu, Yi-Jun and Zhao, Wen-Yun (2013). Requirements-driven self-repairing against environmental failures. In: 7th International Symposium on Theoretical Aspects of Software Engineering, 1-3 Jul 2013, Birmingham.



Self-repairing approaches have been proposed to alleviate the runtime requirements satisfaction problem by switching to appropriate alternative solutions according to the feedback monitored. However, little has been done formally on analyzing the relations between specific environmental failures and corresponding repairing decisions, making it a challenge to derive a set of alternative solutions to withstand possible environmental failures at runtime. To address these challenges, we propose a requirements-driven self-repairing approach against environmental failures, which combines both development-time and runtime techniques. At the development phase, in a stepwise manner, we formally analyze the issue of self-repairing against environmental failures with the support of the model checking technique, and then design a sufficient and necessary set of alternative solutions to withstand possible environmental failures. The runtime part is a runtime self-repairing mechanism that monitors the operating environment for unsatisfiable situations, and makes self-repairing decisions among alternative solutions in response to the detected environmental failures.

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