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The Entity-Relationship Model: Toward a Unified View of Data (1976)
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| Venue: | ACM Transactions on Database Systems |
| Citations: | 1829 - 6 self |
BibTeX
@ARTICLE{Chen76theentity-relationship,
author = {Peter Pin-shan Chen},
title = {The Entity-Relationship Model: Toward a Unified View of Data},
journal = {ACM Transactions on Database Systems},
year = {1976},
volume = {1},
pages = {9--36}
}
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Abstract
A data model, called the entity-relationship model, is proposed. This model incorporates some of the important semantic information about the real world. A special diagrammatic technique is introduced as a tool for database design. An example of database design and description using the model and the diagrammatic technique is given. Some implications for data integrity, infor-mation retrieval, and data manipulation are discussed. The entity-relationship model can be used as a basis for unification of different views of data: t,he network model, the relational model, and the entity set model. Semantic ambiguities in these models are analyzed. Possible ways to derive their views of data from the entity-relationship model are presented. Key Words and Phrases: database design, logical view of data, semantics of data, data models, entity-relationship model, relational model, Data Base Task Group, network model, entity set
Keyphrases
entity-relationship model unified view database design data model network model relational model data manipulation diagrammatic technique infor-mation retrieval different view important semantic information key word logical view data integrity special diagrammatic technique entity set possible way semantic ambiguity real world data base task group
