derivativetype
Derivativetype is a term used in discussions of type systems to describe a type that is produced by applying a derivation operation to an existing base type. In this view, the derivative preserves the core structure of the base type while extending or refining it with additional attributes, constraints, or behavior. The concept is often discussed as a modeling tool rather than a universal language feature, and its precise meaning can vary by language or framework.
A derivation operation may take several forms. Common mechanisms include field augmentation (adding new fields or
Practical use cases include schema evolution, API versioning, and data modeling scenarios where one wants to
Relation to other concepts: a derivativetype is distinct from subtyping, which emphasizes a hierarchical relationship, and
See also: type constructor, subtype, inheritance, type derivation.