Back to Search
Start Over
ER modelling from first relational principles
- Source :
-
Theoretical Computer Science . Jan2004, Vol. 311 Issue 1-3, p285. 39p. - Publication Year :
- 2004
-
Abstract
- Entity-Relationship (ER) modelling is a popular technique for data modelling. Despite its popularity and widespread use, it lacks a firm semantic foundation. We propose a translation of an ER-model into relation algebra, suggesting that this kind of algebra does provide suitable mechanisms for establishing a formal semantics of ER modelling. The work reported on here deals first with the techniques necessary for the translation, thus constructing a static view of an ER-model in an abstract setting of what might be called logic without variables. We then undertake a detailed analysis of the insertion and deletion operations for an ER-model represented in terms of the relation calculus. [Copyright &y& Elsevier]
- Subjects :
- *ENTITY-relationship modeling
*RELATION algebras
*CALCULUS
*SEMANTICS
Subjects
Details
- Language :
- English
- ISSN :
- 03043975
- Volume :
- 311
- Issue :
- 1-3
- Database :
- Academic Search Index
- Journal :
- Theoretical Computer Science
- Publication Type :
- Academic Journal
- Accession number :
- 11884145
- Full Text :
- https://doi.org/10.1016/j.tcs.2003.09.001