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Question 48 - CITM-001 discussion

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A ________ is an association between entities.

A.

Relation

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A.

Relation

B.

Categorization

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B.

Categorization

C.

Generalization

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C.

Generalization

D.

Specialization

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D.

Specialization

Suggested answer: A

Explanation:

A relation is a type of association that describes how two or more entities are related to each other. A relation can have different properties, such as cardinality, optionality, and directionality, that specify the nature and constraints of the association. A relation can also have attributes that store information about the association. For example, a relation between Employee and Project entities can have an attribute called Role that indicates the role of each employee in each project. A relation can be represented by a line connecting the entities in an entity-relationship diagram (ERD).Reference:Association and Associative entity - IBM,When to use Associative entities? - Stack Overflow, [Entity-Relationship Model - Tutorialspoint].

asked 18/11/2024
Nour Algharbi
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