Computer-Aided Design of User Interfaces IV Proceedings of the Fifth International Conference on Computer-Aided Design of User Interfaces CADUIβ2004 Sponsored by ACM and jointly organised with the Eight ACM International Conference on Intelligent User Interfaces IUIβ2004 13β16 January 2004, Funchal, Isle of Madeira - Jacob, Robert J.K (Kluwer Academic Publishers, 2005)