Managing Trustworthiness in Component-based Embedded Systems

摘要: Component-based systems use software components to achieve their overall high-level functionality which, in turn, may be extended by initiating the download of new components. This action detrimentally affect system's dependability and security characteristics. We address problem enhancement for component-based embedded that run, example, consumer electronics devices. propose a Trustworthiness Management Framework while acting on behalf (Trustors), supervises existing Trustor-Trustee relationships preserves system level security. is achieved monitoring quality metrics behaviours, periodically evaluating trustworthiness, (when applicable) controlling them. paper focuses trustworthiness evaluation process offered Framework. seen as Trustors-parameterisable function. expressed with triple values: compliance, benignity stability. The first measures degree which component satisfies Trustor's requirement; second third express expected belief that, resp., will continue compliant component's behavioural qualities remain stable. used Manager make control decisions regulate Keywords: systems, evaluation, management architecture,