Abstract: Panel: • Chauvet Jean-Marie: portablity, cross platform development • Bruce Tognazzini: many of the current user interface designgs are still based on the very limited first Macintosh implementation. Therefore, they propagate many desing decisions that were valid then but unjustified today David C. Smith: proactive versus reactive user interfaces, agents to access information, human-human communication, end-user programming, we are still at the level of the Star