Each NHS Business Definition consists of freestanding text which describes an aspect of NHS activity. The text starts by identifying which generic class encompasses the activity. This is followed by an outline of the business rules which should be applied to the activity.

The NHS Business Definitions are separate from the logical data model and allow specific business areas to be defined in greater detail.

The names of NHS Business Definitions are distinguished from the Classes, Attributes and Data Elements by appearing in Title Case rather than CAPITALS (see the example below).

Where the name appears in text in Blue, it indicates that it is a hyperlink and if clicked on will display the definition for that NHS Business Definition.

An example of an NHS Business Definition is a Hospital Provider Spell, which is related to the logical class ACTIVITY GROUP.