Derivation (GG)

Syntax
either the process or the product of applying a set of grammatical rules to a given input.

Example
S-structure is derived from D-structure by the application of the appropriate instances of affect alpha. Sometimes the notion 'derivation' is used to refer to the set of representations that the grammar associates with a particular utterance, and is equivalent to the notion of a 'grammatical description'.

Link
Utrecht Lexicon of Linguistics