1. A computer program product, comprising a non-transitory computer usable medium having a computer readable program code embodied therein, the computer readable program code adapted to be executed to implement a method, the method comprising: storing policy data for a plurality of entities; handling at least one of a plurality of communications in a network with reference to first policy data corresponding to a first one of the entities to which the at least one of the plurality of communications relates; and handling the at least one of the plurality of communications in the network with reference to a combination of the first policy data and second policy data corresponding to a second one of the entities to which the at least one of the plurality of communications relates.