Principles of Data Management

Restricted terms

40. To aid consistency in naming, a number of terms have restricted meanings. These are described in Tables D.1 to D.4.

Table TABLE D.1 Restricted terms used in the naming of entity types

Term	Restricted meaning
CATEGORY	This is used as a suffix in the name of a ‘categorisation’ entity type (ie, an entity type which provides a categorisation or classification for instances of another entity type) where the ‘categorisation’ entity type is included in the model principally for data management purposes (to allow a level of flexibility in a set of valid values for a business domain concept), as opposed to business purposes, and the instances of the ‘categorisation’ entity type need to be centrally managed.
CLASS	This is used ...