Entity-relationship model - Couverture souple

 
9786130641337: Entity-relationship model

Synopsis

Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. In software engineering, an entity-relationship model (ERM) is an abstract and conceptual representation of data. Entity-relationship modeling is a database modeling method, used to produce a type of conceptual schema or semantic data model of a system, often a relational database, and its requirements in a top-down fashion. Diagrams created by this process are called entity-relationship diagrams,ER diagrams, or ERDs.

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