Supertypes and Subtypes
 

A Class may share common Attributes and Relationships with other Classes but also have some which are specific to that Class only.

For example, ACTIVITY GROUP and CARE ACTIVITY have an ACTIVITY IDENTIFIER as well as having their own unique properties.

ACTIVITY GROUP and CARE ACTIVITY are classed as 'subtypes' of ACTIVITY and as such inherit the properties of the 'supertype' as well as having their own properties.

An example of a 'Supertypes' and 'Subtypes' in diagrams is given below:


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