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Concept Theory in the Context of Information Systems

In this paper the role and the proper place of a concept theory in the context of information systems is proposed. We define the basic modelling situation consisting of objects to be modelled, a modeller, i.e. a person who is modelling, a model, and the relationships between these. We continue this process by describing an information system. Having described information systems we consider a conceptual modelling process, the goal of which is to develop a conceptual schema of the domain of application. In this context the place of a concept theory is found as the foundation for all conceptual modelling.