Network Model

Network Model: -

The network database organizes data in a network or plex structure. Any column in a plex structure can be linked to any other like a tree structure. a plex structure can be described in terms of parents and children. This model allows having more than one parent. Network DBMS have found not much more acceptance in GIS than the hierarchical DBMS. They have the same flexibility limitations as hierarchical database: however, the more powerful structure for representing data relationships allows a more realistic modeling of geographic phenomena. However network database tend to become overlay complex too easily. In this regard it is easy to lose control and understanding of the relationships between elements.