Abstract
The paper focuses on the investigation of special kind of dependencies and operations which allow to specify semantics of concepts by not considering database schema. The negative side of data dependencies exploited in relational database theory is that, in order to understand data semantics, we can not disregard schema of relation. The characteristic feature of constraints at conceptual level is that they abstract from any particular logical data representation aspect, while concentrating on the aspects which are common to all logical representations. It means that critical assumption about Universal Relation could be relaxed at the conceptual design phase. This study of conceptual dependencies and operations among concepts is based on the investigation of semantics of relationships which are defined independently from database logical schema.
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© 1995 Springer-Verlag Berlin Heidelberg
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Gustas, R. (1995). Towards Foundations of Database Schema Independent Modelling of Concepts. In: Eder, J., Kalinichenko, L.A. (eds) East/West Database Workshop. Workshops in Computing. Springer, London. https://doi.org/10.1007/978-1-4471-3577-7_20
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DOI: https://doi.org/10.1007/978-1-4471-3577-7_20
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