This paper presents the MIC * algebraic structure modelling an environment , called the deployment environment, where autonomous, interacting and mobile entities evolve. The underlying idea of this work is that the system coherency rules assumptions are guaranteed by the structure of the deployment environment itself and no assumption is made on of the internal behaviours of agents. Thus, every agent has to follow the rules of the deployment environment to being able to interact with others. So, any misuse will be transparently rejected by the structure and other agents are not affected by bogus actions.