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    Institut für Informatik, Ludwig-Maximilians-Universität München

    Using UML/OCL Constraints for Relational Database Design

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    Integrating relational databases into object-oriented applications is state of the art in software development practice. In database applications, it is beneficial if constraints like business rules are encoded as part of the database schema and not in the application programs. The Object Constraint Language (OCL) as part of the Unified Modeling Language (UML) provides the posssibility to express constraints in a conceptual model unambiguously. We show how OCL, UML and SQL can be used in database constraint modeling, and discuss their advantages and limitations. Furthermore, we present patterns for mapping OCL expressions to SQL code.

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    Description

    Title : Using UML/OCL Constraints for Relational Database Design
    Author(s) : Birgit Demuth, Heinrich Hussmann
    Abstract : Integrating relational databases into object-oriented applications is state of the art in software development practice. In database applications, it is beneficial if constraints like business rules are encoded as part of the database schema and not in the application programs. The Object Constraint Language (OCL) as part of the Unified Modeling Language (UML) provides the posssibility to express constraints in a conceptual model unambiguously. We show how OCL, UML and SQL can be used in database constraint modeling, and discuss their advantages and limitations. Furthermore, we present patterns for mapping OCL expressions to SQL code.
    Subject : unspecified
    Area : Other
    Language : English
    Year : 1999

    Affiliations Institut für Informatik, Ludwig-Maximilians-Universität München
    Editors : Robert France, Bernhard Rumpe
    Volume : 1723
    Publisher : Springer
    Pages : 598-613
    Url : http://dx.doi.org/10.1007/3-540-46852-8_42

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