Most of the other presentations were specific to VTK with minimal discussion of other systems. The notable exception was Ken Martin’s “Web Visualization” presentation. Ken discussed the various approaches to client/server based visualization. He discussed the options and balancing of client versus server side rendering. He mentioned several Java based systems such as VisWiz and VisAD. He noted that the Java JNI approach lets the developer use platform specific functions to optimize speed, while retaining the flexibility and OO power of Java. JNI does require the installation of the proper library files on the client systems, which requires more setup. He briefly discussed Java 3D, noting it is platform specific (at present only Windows 95/NT implementations are available and that it is not a visualization API. His conclusions were that there are many options with three key decision drivers: amount of interactivity, data size (load balancing client/servers) and implementation complexity. He also noted that closed standards (i.e. Java 3D) hurts the process. Ken also gave a talk on how he created a VRML server using VTK.