- entity-relationship diagram
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A graphical representation of entities and their relationships to each other in a conceptual data model.See Also: entity-relationship model
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entity-relationship diagram
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Entity-Relationship-Diagram — Das Entity Relationship Modell, kurz ER Modell oder ERM, deutsch Gegenstands Beziehungs Modell, dient dazu, im Rahmen der semantischen Datenmodellierung einen Ausschnitt der realen Welt zu beschreiben. Das ER Modell besteht aus einer Grafik… … Deutsch Wikipedia
Entity-Relationship Diagram — Das Entity Relationship Modell, kurz ER Modell oder ERM, deutsch Gegenstands Beziehungs Modell, dient dazu, im Rahmen der semantischen Datenmodellierung einen Ausschnitt der realen Welt zu beschreiben. Das ER Modell besteht aus einer Grafik… … Deutsch Wikipedia
Entity-relationship model — A sample Entity relationship diagram using Chen s notation 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… … Wikipedia
entity-relationship model — noun An abstract conceptual representation of structured data. See Also: entity relationship diagram … Wiktionary
Entity (disambiguation) — Entity may refer to:* Entity, a unit * a part of an Entity relationship model or Entity relationship diagram * Character entity reference in HTML, XML or SGML * Entity (netlabel), a Belgian netlabel specialising in experimental electronic musicIn … Wikipedia
Entity–attribute–value model — (EAV) is a data model to describe entities where the number of attributes (properties, parameters) that can be used to describe them is potentially vast, but the number that will actually apply to a given entity is relatively modest. In… … Wikipedia
Entity-attribute-value model — (EAV), also known as object attribute value model and open schema is a data model that is used in circumstances where the number of attributes (properties, parameters) that can be used to describe a thing (an entity or object ) is potentially… … Wikipedia
Diagram — Further information: Chart Sample flowchart representing the decision process to add a new article to Wikipedia. A diagram is a two dimensional geometric symbolic representation of information according to some visualization technique. Sometimes … Wikipedia
Data structure diagram — Example of a Data Structure Diagram. A Data Structure Diagram (DSD) is a data model used to describe conceptual data models by providing graphical notations which document entities and their relationships, and the constraints that binds them. The … Wikipedia
ER diagram — noun An entity relationship diagram; a specialized (usually dynamic) chart that illustrates the relationships between entities in a database, using a specific set of database specific symbols … Wiktionary
