TELEMATIC SYSTEM

The present invention relates to a computer-implemented method for controlling a terminal system connected to a communication network and comprising multiple network access devices, NADs, and a computer system, the method comprising the steps of reading information on associations between the NADs and media and applications to be run on the computer system and/or the NADs; and based on the read information controlling the access of a) at least one of the NADs to a media and/or b) at least one of the applications to a media and/or c) at least one of the applications to at least one of the NADs; and wherein the information comprises provider rules for associations between providers and NADs for providers providing services via the communication network and/ or constraints on associations between NADs and applications.