VisualSim has a powerful block known as "Insight Engine" designed to provide intelligence on the model design by accumulating the data from different sources.
It is for auditing purposes. You can create a virtual network model of a physical network, run different cyber threats such as mand in the middle, brute force, DOS etc. then evaluate the impact of these threats on response times and throughput. At the same time can evaluate to see the quality of the security software.
Network architects, Principal engineers would gain a lot of insight from running their systems under different use cases. They would know what to expect from the current design and how they could improve their design by changing different parameters and components in the virtual prototype.