Developing a Roaming PDA-Based Interface for a Steering Client for OGSI : : Lite using . Net : Practical Lessons Learned

As part of our contribution to the RealityGrid project we have developed a computational steering client that can be used on a PDA from any wireless access point. This development has the potential to free the application scientist from the desktop as the only means of steering simulations. We have used the PDA steerer to interactively steer compute intensive simulations in OGSI::Lite from a living room, a lecture theatre, whilst on AccessGrid and even from a garden. This paper is a discussion of the practical human computer interaction issues of the PDA client and the practical software engineering issues in developing it in .Net using OGSI::Lite.