**graph**◆

*Graph*

A mathematical model that represents connection structures in an abstract fashion. It consists of ''nodes'' and of ''edges'', where the edges represent connections between nodes. In a specific application, nodes as well as edges may be assigned values, such as weights, costs or distances.

**ETSI GR ENI 004** collection of nodes, where some subset of the nodes is connected.

NOTE: Visually, a node is a "point" and a connection is a "line", called an "edge". For the purposes of ENI, any graph may be directed, weighted or both.