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CITM-001 · Question #25

Which diagram consists of object types and relationships?

The correct answer is A. ER Diagram. An ER diagram (Entity-Relationship diagram) is a type of diagram that consists of object types and relationships. An object type is a category of objects that share common attributes and behaviors, such as a class, an entity, or a component. A relationship is a connection or…

IT Operations and Infrastructure Management

Question

Which diagram consists of object types and relationships?

Options

  • AER Diagram
  • BData Flow Diagram
  • CCouple Diagram
  • DAnalytical Diagram

How the community answered

(22 responses)
  • A
    91% (20)
  • B
    5% (1)
  • C
    5% (1)

Explanation

An ER diagram (Entity-Relationship diagram) is a type of diagram that consists of object types and relationships. An object type is a category of objects that share common attributes and behaviors, such as a class, an entity, or a component. A relationship is a connection or association between two or more object types, such as an inheritance, an aggregation, or a dependency. An ER diagram is used to model the structure and semantics of a system, such as a database, a software system, or a business domain. An ER diagram can show the cardinality, optionality, and constraints of the relationships, as well as the attributes and operations of the

Topics

#ER diagram#data modeling#entity-relationship#database design

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