Architecting resilient computing systems: overall approach and open issues

Resilient systems are expected to continuously provide trustworthy services despite changes in the environment or in the requirements they must comply with. In this paper, we focus on a methodology to provide adaptation mechanisms meant to ensure dependability while coping with various modifications of applications and system context. To this aim, we propose a representation of dependability-related attributes that may evolve during the system's lifecycle, and show why this representation is useful to provide adaptation of dependability mechanisms at runtime.