Entity-Relationship Model

Basic Entity-Relationship Modeling
The basic entity-relationship modeling approach is based on describing data in terms of the three parts noted above (Chen 1976):
Entities
Relationships between entitles
Attributes of entitles or relationships ...

[edit] Entity-relationship model
Example of a IDEF1X Entity relationship diagrams used to model IDEF1X itself.[9] ...

Entity-relationship modeling (E/R modeling) - An approach of data modeling that aims to identify the entities of interest and their relationships in database design. The major tool for E/R modeling is the Entity-relationship diagram.
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Chen, P. P., 1976. The entity-relationship model: towards a unified view of data. ACM Transactions in Database Systems. 1 (1): 9-36.

See also: Information, GIS, Model, Entity, Relation