Design-Driven Development Methodology for Resilient Computing

International audienceResilient computing is defined as the ability of a system to stay dependable when facing changes. To mitigate faults at runtime, dependable systems are augmented with fault tolerance mechanisms such as replication techniques. These mechanisms have to be systematically and rigorously applied in order to guarantee the conformance between the application runtime behavior and its dependability requirements. The main contribution of this paper is to propose a design- driven development methodology for resilient computing systems. Our approach consists of refining the design with specifications dedicated to the dependability concerns. This design is then leveraged to support the development of the application while ensuring the traceability of the dependability requirements along the application life-cycle, including runtime adaptation