
IMMEDIATE, which stands for Intelligent MultiMEDIA Transactions Environment, concerns the development of a collection of transaction primitives for embodied conversational agents in (3D) virtual environments. Such transaction primitives must include facilities for the interpretation of questions and commands from a (human) user, learning functionality (so that the agent can acquire, in the process of interaction, knowledge about the virtual world and the user), as well as a repertoire of actions (that is movements and gestures) with which the agent can respond in an adequate way.