Enhanced Entity-Relationship (EER) Modeling Concepts Quiz
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Questions and Answers

Which modeling concepts are included in the EER model?

  • Basic ER concepts
  • Object-oriented concepts
  • Constraints on Specialization/Generalization
  • All of the above (correct)
  • What does EER stand for?

  • Enhanced ER (correct)
  • Extended ER
  • Entity-Relationship
  • All of the above
  • Which entity type may have additional meaningful subgroupings of its entities?

  • MANAGER
  • SECRETARY (correct)
  • ENGINEER
  • All of the above
  • What are the additional EER concepts used for?

    <p>Modeling applications more completely and accurately</p> Signup and view all the answers

    What are subclasses and superclasses used for in EER modeling?

    <p>Grouping entities based on their attributes</p> Signup and view all the answers

    Study Notes

    EER Model Concepts

    • EER stands for Enhanced Entity Relationship
    • The EER model includes concepts such as subclasses, superclasses, and categories
    • A category is an entity type that may have additional meaningful subgroupings of its entities, referred to as subclasses
    • Categories allow for further classification and grouping of entities

    Subclasses and Superclasses

    • Subclasses are used in EER modeling to represent a specialized version of an entity type
    • Superclasses are used in EER modeling to represent a generalized version of an entity type
    • Subclasses inherit the attributes of their superclass, and may also have additional attributes
    • Subclasses and superclasses are used to model real-world situations where objects have a hierarchical relationship

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    Description

    Test your knowledge on Enhanced Entity-Relationship (EER) Modeling concepts with this quiz. Explore the additional concepts and constraints used to model applications more accurately.

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