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青山 素子 青山 素子
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Discuss the approach used in conceptual data modeling for uniquely identifying objects of a data class via keys. What is a unique identifier composed of? What is the term for a potential unique identifying key? What is the term for the unique key selected by the designer of the class? List four rules of thumb for selecting an identifier, and discuss how unique identifiers are symbolized in a UML class diagram. Finally, define the concept of an "object identifier" and discuss why this is generally not used for unique identification in database classes.
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Object-Oriented System Analysis and Design

Object-Oriented System Analysis and Design


Edition: 1st
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fierofiero
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青山 . Author
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7 years ago
Loving it!
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7 years ago
Contact me directly if you need anything else
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