What is a graph model?

A graph model describes the structure of a graph database, and is comprised of two core components—nodes and edges. An edge connect two nodes together by describing their relationship to one another. With many nodes connected by many edges, a spider-web of interconnected points emerges. This is a graph.

Data is stored in this way with each node-edge-node combination, or ‘triple’, describing a fact—a known piece of information. For example, oak isA tree. Much like a tree, these facts branch out until you have a graph of knowledge.