What is subtype entity?

A subtype entity is a specialized version of a more general entity in a data model, often used in entity-relationship diagrams. It inherits attributes and relationships from its parent entity while also having its own unique attributes. This allows for more precise modeling of data by capturing specific characteristics of the subtype that may not apply to all instances of the parent entity. Subtype entities are useful in scenariOS where different categories of data share common features but also require distinct information.