The GoldSim simulation environment is highly graphical and completely object-oriented. You create models by manipulating graphical objects such as those shown below:
The objects represent the features, processes and events controlling the system that you are simulating. In a sense, GoldSim is like a "visual spreadsheet" allowing you to visually create and manipulate data and equations. As can be seen in the example shown above, based on how the various objects in your model are related, GoldSim automatically indicates their influences and interdependencies by visually connecting them in an appropriate manner.