In the context of a flow network, what is the term for the start and end points?

In the context of a flow network, the terms "source" and "sink" are specifically used to designate the start and end points of the flow. The source is the node where the flow originates, while the sink is where the flow is directed to. These terms are standard terminology in network theory and provide clarity on the direction of flow within the network.

Using "source" indicates that it is the point of input, where resources or flow begin their journey through the network. Conversely, a "sink" accurately conveys that this is the endpoint where resources or flow are consumed or exit the network. This precise language is crucial in the study and application of flow networks, especially in fields such as computer science, logistics, and operations research, where understanding the flow dynamics is essential for efficient system design and analysis.

The other terms provided do not accurately represent these roles in a flow network. "Node" is a more general term that can refer to any point in the network, while "start and finish" as well as "terminal" do not carry the specific meanings associated with flow networks that "source" and "sink" do.