Traditionally simulation results are available as either data tables or X-Y plots. Data tables are helpful for further processing by other computational tools. X-Y plots, on the other hand, tend to get complex even for a limited number of species. In creating a new visualization tool, we had two goals in mind. A first goal was to tie simulation results strongly to the model. A next goal was to be able to view the simulation in real time to refine or broaden it where necessary. These goals have been realized in form of a 3D Time-course Visualization module.