Doberkat, Ernst-ErichOmodeo, Eugenio G.2004-12-062004-12-0620012002-04-04http://hdl.handle.net/2003/267210.17877/DE290R-14962Entity-Relationship modeling is a popular technique for data modeling. Despite its popularity and wide spread use, it lacks a firm semantic foundation. We propose a translation of an ER-model into mapalgebra, suggesting that mapalgebra does provide suitable mechanisms for establishing a formal semantics of entity-relationship modeling. This report deals with the techniques necessary for the translation and provides a static view of an ER-model in its mapalgebraic disguise.enUniversität DortmundInternes Memorandum des Lehrstuhls für Software-Technologie / Fachbereich Informatik, Universität Dortmund ; 110004working paper