[data models]
The way in which features in GIS data are attached to one another functionally or spatially.
[Esri software]
In a geodatabase, the state of association between edges and junctions in a network system for network data models. Connectivity helps define and control flow, tracing, and pathfinding in a network.
[network analysis]
In a coverage, topological identification of connected arcs by recording the from-node and to-node for each arc. Arcs that share a common node are connected.