Filed in: entity relationship modelling

How to overcome pitfalls of (E)ER and UML in Knowledge Management education

Abstract: In this paper we will present the results of research into modelling pitfalls in (Extended) Entity Relationship modelling ((E)ER) and the Unified Modelling Language (UML). We will give a precise definition of the relationship cardinality/association end multiplicity concept in (E)ER and UML based upon the various definition ‘fragments’ we have encountered in the