Consequently, the proposed framework is not just an instantiation of the security functional group of ARM, but it actually extends it by defining additional modules which can be considered in the context of smart buildings. Fig.2shows our ARM-compliant architecture, in which the security functional group is detailed. In addition to the five functional components of ARM, we propose an extension with the inclusion of two new functional components: Context Managerand Group Manager. The former has been added in our framework to enable the rest of security components to cope with the