Last modified on 2 November 2008, at 10:51

Category:Entity-relationship models

 The article Entity-relationship models on Wikipedia projects: (en) Entity-relationship model ·
(de) Entity-Relationship-Modell · (es) Modelo entidad-relación · (fr) Modèle entité-relation · (ja) 実体関連モデル · (ko) 개체-관계 모델 · (nl) Entity-relationshipmodel · (pl) Entity Relationship Diagram · (pt) Diagrama entidade relacionamento · (ru) ER-модель данных · (sr) Модел објекти-везе · (zh) ER模型 · +/−

Entity-Relationship Models (ERM) is an abstract conceptual representation of structured data. Entity-relationship modeling is a relational schema database modeling method, used in software engineering to produce a type of conceptual data model or semantic data model of a system, often a relational database, and its requirements in a top-down fashion. Diagrams created using this process are called entity-relationship diagrams, or ER diagrams or ERDs for short.

Originally proposed in 1976 by Peter Chen, many variants of the process have subsequently been devised.

See also:

Media in category "Entity-relationship models"

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