The entity-relationship model—toward a unified view of data

  title={The entity-relationship model—toward a unified view of data},
  author={Peter P. Chen},
  journal={ACM Trans. Database Syst.},
  • Peter P. Chen
  • Published 26 August 2011
  • Computer Science
  • ACM Trans. Database Syst.
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, information retrieval, and data manipulation are discussed. The entity-relationship model can be used as a basis for… 

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