Data structured in a graph form. In Computer Science, a graph is a data structure consisting of a set of nodes (also called vertices) together with a set of edges connecting such vertices. For instance, an example of a graph could be a network where nodes represent cities and edges major roads connecting them. In the context of data management, graph data refers to a representation of information where data items are represented as nodes (vertices) in a graph, whereas the edges represent relationships between data items.