We discuss ways to explore how instructional material needs to be structured to be presented with various degrees of interactivity. We use the TRINDI 1 information state approach to model three different degrees of interactivity and present IMDiS, a small experimental implementation based on the GoDiS dialogue system.

BACKGROUND The effectiveness of eHealth interventions in terms of reach and outcomes is now well documented. However, there is a need to understand not only whether eHealth interventions work, but also what kind of functions and mechanisms enhance their effectiveness. The present investigation contributes to tackling these challenges by investigating the role played by functional interactivity ...

Multicast delivery can improve the scalability of Video-On-Demand (VOD) systems by allowing multiple customers to share one set of video server and network resources. In such a system, providing customer interactivity can be diicult. In this paper we overview our work which addresses how interactivity may be accomplished in a multicast delivery environment and analyzes the performance of such s...

Traditional storytelling media, such as the novel, cinema, and television, draw much of their emotional power from characters and story. The greatest impact of interactive media will arise only when they too exhibit these characteristics. However, rich interactive characters and rich interactive story are unfamiliar concepts. The Oz Project is trying to bring together writers, artists, and arti...