Conceptually, a database consists of objects and relationships.
Object Relationship Notation (ORN) is a simple notation that more
precisely defines relationships by combining UML multiplicities
with uniquely defined referential actions.
Object Relationship Notation (ORN) for Database Applications:
Enhancing the Modeling and Implementation of Associations shows how
ORN can be used in UML class diagrams & database definition
languages (DDLs) to better model & implement relationships
& thus more productively develop database applications. For the
database developer, it presents many examples of relationships
modeled using ORN-extended class diagrams & shows how these
relationships are easily mapped to an ORN-extended SQL or Object
DDL. For the DBMS developer, it presents the specifications &
algorithms needed to implement ORN in a relational and object
DBMS.
This book also describes tools that can be downloaded or
accessed via the Web. These tools allow databases to be modeled
using ORN and implemented using automatic code generation that adds
ORN support to Microsoft SQL Server and Progress Object Store.
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