Titlebook: Object Relationship Notation (ORN) for Database Applications; Enhancing the Modeli Bryon K. Ehlmann Book 2009 Springer-Verlag US 2009 DBMS.

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Bryon K. Ehlmanny given little attention to the anatomical relationship between the primary tumor and metastasic sites. Only risk factors, treatment possibilities, and survival results are extensively examined. .Stimulated by the occurrence in his practice of some puzzling and unexpected metastases, the author revi

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Bryon K. Ehlmannttle attention to the anatomical relationship between the primary tumor and metastasic sites. Only risk factors, treatment possibilities, and survival results are extensively examined. .Stimulated by the occurrence in his practice of some puzzling and unexpected metastases, the author reviewed more

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y given little attention to the anatomical relationship between the primary tumor and metastasic sites. Only risk factors, treatment possibilities, and survival results are extensively examined. .Stimulated by the occurrence in his practice of some puzzling and unexpected metastases, the author revi

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Introductionthings,” there have been relationships among them. And, since humans have been recording in-formation about things, we have been recording relationships. After all, an atom “contains” one or more subatomic particles—a relationship. A figure in a prehistoric cave painting “is adjacent to” some other

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Object Relationship Notation (ORN)database,” as indicated by the title of this 1992 paper. Like the relational and ER models, ORN has evolved from what was originally proposed. Its syntax, graphical representation, and semantics have changed slightly, and it has been integrated into UML class diagrams, adapted to relational database

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ORN Simulatorn (Ehlmann and Riccardi 1999, Ehlmann 2002). The user defines object types, or classes, and rela-tionships, or associations, in the context of an ORN-extended ER or class diagram. The model defined by the diagram “comes alive” in the sense that the user can read-ily create, view, and manipulate a pr