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Class Diagram
A class diagram is required to support functional necessity of system. In a static design view, class diagram is used to model vocabulary of the system, simple collaboration and logical schema. It consists of sets of classes, interfaces, collaborations, dependency and generalization and association relationship. The notation for classes and the relationship among classes is shown as:
Figure: Relationship among classes
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An entity set that does not have sufficient attributes to form a primary key is called? An entity set that doesn't have sufficient attribute to form a primary key is known as w
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