In an ER model, what does a circle represent?
Correct Answer: A circle represents an attribute of an entity.
- Step 1: Understand what an ER model is. It stands for Entity-Relationship model, which is used to represent data and its relationships.
- Step 2: Identify the components of an ER model. The main components are entities, attributes, and relationships.
- Step 3: Know what an entity is. An entity is a thing or object in the real world that can be identified.
- Step 4: Learn about attributes. Attributes are characteristics or properties of an entity.
- Step 5: Recognize the shape used for attributes in an ER model. A circle is used to represent an attribute.
- Step 6: Conclude that when you see a circle in an ER model, it means it is showing an attribute of an entity.
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