Digital television services are now available in various countries in Europe and throughout the world featuring applications such as (Electronic Program Guide and Digital Teletext. Future applications will combine television, real-time data broadcast and eventually Internet access to offer value-added services and Electronic Commerce applications for the residential use. This paper discusses possible approaches to implement and to manage applications for enhanced digital television services which exploit the broadcast technology by adding interactivity and multimedia. A production system is described, which provides means to address the specific characteristics of the broadcast environment. The ideas presented in this paper stem from the experience gained during the ACTS IMMP Project.