The Second International Workshop on the Relationships between Software Engineering and Human-Computer Interaction was held on May 24-25, 2004 as part of the 2004 International Conference on Software Engineering, in Edinburgh, Scotland. This workshop was the second at ICSE and the fourth in a series held at international conferences in the past two years. It was motivated by a perception among researchers, practitioners, and educators that the fields of Human-Computer Interaction and Software Engineering were largely ignoring each other and that they needed to work together more closely and to understand each other better. This report describes the motivation, goals, organization, and outputs of the workshop.