ER diagrams in MDC3 are used to model which elements?

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Multiple Choice

ER diagrams in MDC3 are used to model which elements?

Explanation:
ER diagrams model the structure of data by focusing on entities, their attributes, and the relationships between those entities. They act as a blueprint for designing relational schemas because they show what tables will exist, what fields each table will store, and how the tables connect through relationships (often using keys to enforce those links). This helps ensure data is organized consistently and logically when it’s translated into a relational database. They aren’t used to show data flow, define user permissions, or represent physical networks—that’s covered by other kinds of diagrams or models.

ER diagrams model the structure of data by focusing on entities, their attributes, and the relationships between those entities. They act as a blueprint for designing relational schemas because they show what tables will exist, what fields each table will store, and how the tables connect through relationships (often using keys to enforce those links). This helps ensure data is organized consistently and logically when it’s translated into a relational database.

They aren’t used to show data flow, define user permissions, or represent physical networks—that’s covered by other kinds of diagrams or models.

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