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UML and Data Modeling: A Reconciliation by David Hay

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The first book, with the title Object-Oriented Systems Analysis, by Sally Schlaer and Stephen J. Mellor, was published in 1988. Its sub-title was Modeling the World in Data.[99] This book translated the notions from what they saw as Information Modeling into a language more amenable to object-oriented designers. It was based on both Dr. Codds relational principles and the works on modeling by Dr. Chen[100] and James Martin.[101]

First, a nomenclature issue: They use the term object to mean class. In their examples, an object might be a kind of tangible object, such as a pipe or a delivery vehicle, a kind of role, such as being a student or an instructor, and so forth. Instances of an object are discussed in the ...

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