Entity-Relationship Models: Formal Specification and Comparison

Research output: Contribution in Book/Catalog/Report/Conference proceedingConference contribution


The paper is an abstract of a tutorial presented at the 9th ERA conference. It defines a generic model based on an extension of the N1NF relational model (including, a.o., the entity domain), and whose semantics is formally specified. From this framework, a variety of standard entity-based and object-based models are derived. Thefore, the latter can be formally defined, and compared. In addition, the concept of schema transformation is introduced.
Original languageEnglish
Title of host publicationProc. of the 9th Int. Conf. on the Entity-Relationship Approach
Number of pages12
Publication statusPublished - 1990


  • schema transformation
  • formal semantics
  • ER model
  • database modeling


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