The deployment of AmI technologies in large facilities sets new challenges due to the difficulty to perform experiments in physical large settings, with high number of users. We propose a framework for such domain using simulations that combine social simulation techniques, specialized in assessing large population behaviors, along with experience in AmI systems simulations, specialized in considering sensor and actuator networks embedded in a physical environment. The framework will allow the configuration of simulation features and options according to user and device models defined by domain experts, as well as the interaction between the proposed simulator and a context generated by external sources (other simulators or AmI infrastructures). This paper also proposes the first steps towards an implementation of this architecture through contributions on known simulators.