EntitiesAn entity represents a person or an object, or something abstract.

AttributesEach entity has a set of attributes that describe examples or instances of that entity.

NotationThe entity name should be written in capital letters, and in singular. The attributes should follow in a bracketed list.

PersonPUPIL (candidate_number, forename, surname, dob, tutor_group)

ObjectCAR (registration_plate, make, model, colour)

AbstractDOCTOR APPOINTMENT (date, time, consultant, location)

DatabasesEntities and attributes are part of the data modelling process. When moving from data modelling to implementation:

Entities become tables in a databaseAttributes become fields in a database

PUPIL (candidate_number, forename, surname, dob, tutor group)

Pupil

DatabasesEntities and attributes are part of the data modelling process. When moving from data modelling to implementation:

Entities become tables in a databaseAttributes become fields in a database

CAR (registration_plate, make, model, colour)

Car