entity-relationship model


entity-relationship model

(database, specification)An approach to data modellingproposed by P. Chen in 1976. The model says that you divideyour database in two logical parts, entities (e.g. "customer","product") and relations ("buys", "pays for").

Entity-relationship diagrams can be used to represent a model.

["The entity-relationship model: toward a unified view ofdata", P.P. Chen, ACM Transactions on Database Systems 1:1 pp9-36, 1976].