Entities represent people, objects, or abstract concepts and have attributes that describe examples of the entity. Notation defines the entity name in capital letters and attributes in brackets. Entities and attributes are part of data modeling, where entities become database tables and attributes become fields during implementation. Examples provided include a PUPIL entity with attributes like name and DOB, a CAR entity with attributes like make and model, and a DOCTOR APPOINTMENT entity with date and time attributes.

2. Entities
An entity represents a person or an object, or something abstract.

3. Attributes
Each entity has a set of attributes that describe examples or instances of that
entity.

4. Notation
The entity name should be written in capital letters, and in singular. The attributes should
follow in a bracketed list.
Person
PUPIL (candidate_number, forename, surname, dob, tutor_group)
Object
CAR (registration_plate, make, model, colour)
Abstract
DOCTOR APPOINTMENT (date, time, consultant, location)

5. Databases
Entities and attributes are part of the data modelling process. When moving from data
modelling to implementation:
Entities become tables in a database
Attributes become fields in a database
PUPIL (candidate_number, forename, surname, dob, tutor group)
Pupil

6. Databases
Entities and attributes are part of the data modelling process. When moving from data
modelling to implementation:
Entities become tables in a database
Attributes become fields in a database
CAR (registration_plate, make, model, colour)
Car

7. Databases
Entities and attributes are part of the data modelling process. When moving from data
modelling to implementation:
Entities become tables in a database
Attributes become fields in a database
CAR (registration_plate, make, model, colour)
Car