The application of UML association end multiplicities for conceptual modeling

In this paper we will present the results of research into the semantics of association end multiplicities (aems) in the unified modeling language (uml). In this paper we will give a precise definition of the aem concept in uml based upon the various definition ‘fragments’ we have encountered in the uml literature and we will give explicit rules for the application of the aem for the conceptual modeling of an application subject area