1. Scientific Visualization Java3D Object Controlling over PDA- Server Connection Sangyoon Oh Soh@csit.fsu.edu

2. Scientific Visualization Introduction Java3D Object communicates with Waba Application on PDA over Wireless TCP/IP socket Waba provides Java-like programming environment to PDA

3. Scientific Visualization PDA Application send control request over socket Server Get request and change the property of Java3D object Socket (over Wireless LAN) Architecture

4. Scientific Visualization Waba Waba programming, which specially designed for smaller devices, is strict- subset of Java Language. Waba is created by Wabasoft and has no connection to Sun Microsystems. Comparing to KVM from Sun, it has more reliability and larger developers group now.

5. Scientific Visualization Waba: Pros and Cons Pros: Efficiency: It is small enough to fit less powerful PDA Performance: Waba shows better performance than KVM Portable: Platform independent

6. Scientific Visualization Waba: Pros and Cons Cons: Weak support of GUI, Events, and Exception No Thread Limited Communication Programming Environment (Byte Buffer)

7. Scientific Visualization Future Study The Framework: Visualization module register to Java Framework/Broker and it waits Waba Clients requests Make an API to set up the protocols between Controller and Object Broker, between Broker and Waba Client