Researchers in Information Systems (IS) have conducted extensive research into various kinds of collaboration systems over the last twenty-five years. A parallel stream of inquiry in psychology and management has developed research in organizational Emotional Intelligence, which contributes to the effectiveness of group interactions by increasing cooperation and reducing conflict. Collaboration systems present a special opportunity to introduce soft management functions such as Emotional Intelligence because they are designed as an intelligent channel of interaction between group members. This research used an Information Systems Design Theory approach to guide the integration of Emotional Intelligence functions into collaboration systems. Two artifact systems were constructed based on these designs, and the systems were utilized and compared in a lab exercise that required group interaction. The findings of the research provide validation of the design approach, evaluation of emotional communication effects, and implications for new dimensions of emotion-based subtext and advisory capabilities that enhance Emotional Intelligence