entity-relationship model

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entity-relationship model

(database, specification)
An approach to data modelling proposed by P. Chen in 1976. The model says that you divide your 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 of data", P.P. Chen, ACM Transactions on Database Systems 1:1 pp 9-36, 1976].
References in periodicals archive ?
The entity relationship diagram is the standard data technique for creating data models.
It performs "push-button" translation of Entity Relationship Diagrams (ERDs) into Class Diagrams and vice versa, saving developers significant time in building error-free models.
DISCOVER allows software developers to navigate, comprehend, analyze dependencies, and manage source code through a variety of textual views and queries about files, functions, variables, and classes, as well as graphical views like call tree, class inheritance, entity relationship diagrams, and outlines.
DISCOVER allows Cincom software developers to more quickly navigate, comprehend, and analyze dependencies and manage source code through a variety of textual views and queries about files, functions, variables, and classes, as well as graphical views like call tree, class inheritance, entity relationship diagrams, and outlines.
Manage - Use DISCOVER to navigate, comprehend, analyze dependencies, and manage source code through a variety of textual views and queries about files, functions, variables, and classes, as well as graphical views like call tree, class inheritance, entity relationship diagrams, and outlines.
The product supports data modeling and database design using entity relationship diagrams (ERDs) notations/methods by Martin, Bachman, IDEF1X, or Shlaer-Mellor.
EasyER uses entity relationship diagrams (ERDs) based on notations defined by Martin IE, Bachman, IDEFIX, and Shlaer-Mellor.
Informix database schemas are generated by VantageTEam tools by translating the Entity Relationship Diagrams (ERD) into Informix database tables and indices.