Marc Hassenzahl explains the fascinating concept of User Experience and Experience Design. Commentaries by Don Norman, Eric Reiss, Mark Blythe, and Whitney Hess
User Experience and Experience Design !
Karrer, Anthony and Scacchi, Walt (1990): Requirements for an Extensible Object-Oriented Tree/Graph Editor. In: Hudson, Scott E. (ed.) Proceedings of the 3rd annual ACM SIGGRAPH symposium on User interface software and technology October 03 - 05, 1990, Snowbird, Utah, United States. pp. 84-91.