There was also an EU sponsored project a few years ago called TEDUB. I remember evaluating it at the time, but I'm not sure what the current state of it is. In essence, the project used a force-feedback joystick and some directional audio to provide non-visual renderings of the UML content; or at least that is my memory of it. Dónal __________ View the list's information and change your settings at //www.freelists.org/list/programmingblind