File:ER_Diagram_MMORPG.svg · Wikimedia Commons · See Wikimedia Commons
entity-relationship model
Sign in to saveAlso known as ER model, entity-relationship modeling, ER modeling, EAR model, EAR modeling, ERD, ER schema, ERM
describes inter-related things of interest in a specific domain of knowledge;composed of entity types (which classify the things of interest) and specifies relationships that can exist between instances of those entity types
Wikidata facts
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- Commons category
- Entity-relationship models
- Stack Exchange tag
- stackoverflow.com/tags/entity-relationship
- ACM Classification Code (2012)
- 10002959
Sources (2)
via Wikidata · CC0
~25 min read
Article
An entity–attribute-relationship diagram for an MMORPG using Chen's notation
An entity–relationship model (or ER model) describes interrelated things of interest in a specific domain of knowledge. A basic ER model is composed of entity types (which classify the things of interest) and specifies relationships that can exist between entities (instances of those entity types).