The Network object server implements an object model that represents a network. This network is made up of one or more domains. Each of these domains contains in turn several nodes connected to each other by directional lines. Nodes have an input and an output capacity which respectively correspond to the capacity of the incoming and outgoing lines.

The diagram below illustrates an instance of the Network object model. The figure between brackets following the line number (for example, line3 [5]) is the line capacity.