Describe the relationship between a network, control, and demand diagram in a model.
A model is a collection of elements that include a network, a control data set, and a demand diagram.
The network consists of physical assets including pipes, hydrants, and valves.
The control data set determines the time-varying behavior of the network. The control data set defines the initial state of the model and the policy for controlling the network.
The demand diagram defines the demand profile of customers that must be supplied by the network.
