What is a morphosyntactic operation?

Definition
	A morphosyntactic operation is an ordered, dynamic relation between one linguistic form and another.

Discussion
	A morphosyntactic operation is often manifested (or coded) by a formal operator, such as a prefix, a suffix, a stress shift or a combination of two or more of these. However, some operations are not overtly coded. One method of noting the existence of a morphosyntactic operation that has no overt realization is to posit a zero morpheme.

Contrast: morphosyntactic operations and morphological processes
	Morphological processes encode morphosyntactic operations.
	Morphosyntactic operations have conceptual content and may be associated with particular functions.
	Example: Plural formation is a morphosyntactic operation, whereas suffixation is a kind of morphological process that English uses to encode plural formation.

Kinds
	Here are two kinds of morphosyntactic operations:
	What is derivation? What is inflection?