Which three are key components of an Entity Relationship Model?

Key components of an Entity-Relationship Model (ERM) include:

B . an attribute: Attributes are properties or characteristics of an entity, such as a person's name,

date of birth, etc., and are essential in describing the data aspects of an entity in an ER model.

E . a relationship: Relationships describe how entities interact with each other within the database

structure, such as a customer placing an order.

F . an entity: Entities are the key components of an ER model, representing objects or things within

the domain that have a distinct existence, like 'Customer' or 'Order'.

Incorrect options:

A: A table is a database structure used to implement an entity in relational databases, not a

component of the ER model itself.

C: While unique identifiers are crucial in database implementation (typically as primary keys), they

are a specific attribute type, not a general component of ER models.

D: An activity is not a component of an ER model; activities relate more to process models or

behavioral models in systems design.