The enhanced or extended entity–relationship (EER) model is a high-level or conceptual data model incorporating extensions to the original entity–relationship (ER) model, used in the design of databases.
The enhanced or extended entity–relationship (EER) model in computer science is a high-level or conceptual data model incorporating extensions to the original entity–relationship (ER) model, used in the design of databases.
It aims to reflect more precisely the properties and constraints that are found in more complex databases, such as in engineering design (CAD/CAM) or Geographic Information Systems (GIS).