What is another name for an entity in an entity-relationship (ER) diagram?

Question

BlackTom AI · Accepted Answer

Let’s break down what an ER diagram represents and how its components translate to a database schema.
Option a: Form. A form is a user interface element used to input or display data, not the fundamental data representation in an ER model, so it doesn’t align with the concept of an entity in an ER diagram.
Option b: Query. A query is a request for data or a way to retrieve information from a database; it is an operation performed on data, not the data’s structural type in the ER model, so it’s not the correct match for an entity.
Option c: Report. A report is a formatted output of data for viewing or printing, often aggregating or presenting stored data; like a query, it’s a usage artifact rather than a core data object in the ER framework, so it doesn’t represent an entity.
Option d: Table. In the context of database design, entities identified in an ER diagram correspond to tables in a relational schema. Each entity’s attributes become the table’s columns, and relationships inform keys and foreign keys. This mapping is the standard interpretation of how ER components translate into a physical database structure.
In summary, the entity concept in an ER diagram is best associated with a table in a relational database, while the other options describe UI or output constructs rather than the underlying data structures.

MUF0052 ICT Unit 2 - Semester 1, 2025 3.8 Quiz: Design and development

What is another name for an entity in an entity-relationship (ER) diagram?

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