ACM SIGMOD Anthology ACM SIGMOD dblp.uni-trier.de

A Formal Definition of Entity-Relationship Models.

Peter A. Ng, J. F. Paul: A Formal Definition of Entity-Relationship Models. ER 1979: 211-230
@inproceedings{DBLP:conf/er/NgP79,
  author    = {Peter A. Ng and
               J. F. Paul},
  editor    = {Peter P. Chen},
  title     = {A Formal Definition of Entity-Relationship Models},
  booktitle = {Entity-Relationship Approach to Systems Analysis and Design.
                Proc. 1st International Conference on the Entity-Relationship
               Approach},
  publisher = {North-Holland},
  year      = {1979},
  isbn      = {0-444-85487-8},
  pages     = {211-230},
  ee        = {db/conf/er/NgP79.html},
  crossref  = {DBLP:conf/er/79},
  bibsource = {DBLP, http://dblp.uni-trier.de}
}
BibTeX

Abstract

The nondeterministic or deterministic entity-relationship model of a database is formally defined as a user's view of that database as a collection of time-varying relations: regular or weak entity relations, or regular or weak relationship relations. Both nondeterministic and deterministic entity-relationship models have the same strength to characterize information concerning entities and relationships which exist in our minds. Finally, the basic concept of the entity-relationship approach to the logical database design is provided, and is used to derive 3NF relations. An improved table form of the relations, which provides a clear and concise user's view of database, is introduced.

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References

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E. F. Codd: A Relational Model of Data for Large Shared Data Banks. Commun. ACM 13(6): 377-387(1970) BibTeX
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Peter P. Chen: The Entity-Relationship Model - Toward a Unified View of Data. ACM Trans. Database Syst. 1(1): 9-36(1976) BibTeX
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Philip A. Bernstein: Synthesizing Third Normal Form Relations from Functional Dependencies. ACM Trans. Database Syst. 1(4): 277-298(1976) BibTeX
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Catriel Beeri, Philip A. Bernstein: Computational Problems Related to the Design of Normal Form Relational Schemas. ACM Trans. Database Syst. 4(1): 30-59(1979) BibTeX
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C. J. Date: An Introduction to Database Systems. Addison-Wesley 1975, ISBN 0-201-14452-2
BibTeX
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Ronald Fagin: The Decomposition Versus Synthetic Approach to Relational Database Design. VLDB 1977: 441-446 BibTeX
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Referenced by

  1. Jürgen Ebert, Andreas Winter, Peter Dahm, Angelika Franzke, Roger Süttenbach: Graph Based Modeling and Implementation with EER / GRAL. ER 1996: 163-178
  2. Vram Kouramajian, Ramez Elmasri: Mapping of 2-D Temporal Extended ER Models into Temporal Nested Relational Models. ER 1991: 671-691
  3. Ferdi Put: Schema Translation during Design and Integration of Databases. ER 1990: 431-453
  4. Nabiha Azar, Etienne Pichat: Translation of an Extended Entity-Relationship Model into the Universal Relation with Inclusions Formalism. ER 1986: 253-268
  5. Amílcar Sernadas, Cristina Sernadas: The Use of E-R Abstractions for Knowledge Representation. ER 1985: 224-231
  6. Tok Wang Ling: A Normal Form For Entity-Relationship Diagrams. ER 1985: 24-35
  7. Doris E. Altenkrueger: FAIM, the Formal Association Inference Model, a Means for the Formal definition of Coceptual Meta Schemas. ER 1985: 10-17
  8. Christine Parent, Stefano Spaccapietra: An Entity-Relationship Algebra. ICDE 1984: 500-507
  9. Harry M. Sneed, Wolf-Rüdiger Gawron: The Use of the Entity-Relationship Model as a Schema for Organizing the Data Processing Activities. ER 1983: 717-730
  10. Erika Nyari, Harry M. Sneed: SOFSPEC: A Pragmatic Approach to Automated Specification Verification. ER 1983: 651-660
  11. Ilchoo Chung, Fumio Nakamura, Peter P. Chen: A Decomposition of Relations Using the Entity-Relationship Approach. ER 1981: 149-171
  12. Peter P. Chen: Recent Literature on the Entity-Relationship Approach. ER 1979: 3-12
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