I built a system for collaborative tree comparison to implement examples of the first design considerations I collected from a large literature analysis. The videos below show some of the features of the system. The system is meant to help collaborators compare and analyze hierarchical data structures. The data I used came from the domain of molecular biology.
Petra Isenberg and Sheelagh Carpendale (2007) Interactive Tree Comparison for Co-located Collaborative Information Visualization. IEEE Transactions on Visualization and Computer Graphics (Proceedings Visualization / Information Visualization 2007), 13(6):1232–1239, November/December 2007.