A Enclosure+Connection technique for layout and navigation of Hierarchical Information. The layout uses "angular" enclosure partitioning approach where the child nodes are located around their parent. The program was written in Java Applet.
Related Publications:
https://ieeexplore.ieee.org/abstract/document/1173152
https://journals.sagepub.com/doi/abs/10.1057/palgrave.ivs.9500031