ER modelling from first relational principles

Doberkat, Ernst-Erich; Omodeo, Eugenio G.

ER modelling from first relational principles

dc.contributor.author	Doberkat, Ernst-Erich	de
dc.contributor.author	Omodeo, Eugenio G.	de
dc.date.accessioned	2004-12-06T12:55:05Z
dc.date.available	2004-12-06T12:55:05Z
dc.date.created	2003	de
dc.date.issued	2003-04-28	de
dc.description.abstract	Entity-Relationship modelling is a popular technique for data modelling. Despite its popularity and wide spread 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 Entity-Relationship 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.	en
dc.format.extent	424512 bytes
dc.format.mimetype	application/pdf
dc.identifier.uri	http://hdl.handle.net/2003/2679
dc.identifier.uri	http://dx.doi.org/10.17877/DE290R-16053
dc.language.iso	en	de
dc.publisher	Universität Dortmund	de
dc.relation.ispartofseries	Internes Memorandum des Lehrstuhls für Software-Technologie / Fachbereich Informatik, Universität Dortmund ; 132	de
dc.subject	Entity-Relationship models (static and dynamic view)	en
dc.subject	relational foundations of data modelling.	en
dc.subject	relation algebra	en
dc.subject.ddc	004	de
dc.title	ER modelling from first relational principles	en
dc.type	Text	de
dc.type.publicationtype	workingPaper
dcterms.accessRights	open access

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