A piece of code that operates as a single logical unit. A function is called by name, accepts optional input parameters, and returns a status and optional output parameters. Many programming languages support functions.
— Computer ScienceA prewritten formula that simplifies the process of entering calculations and enables the user to use formulas that might be difficult to build from scratch.
— Computer ScienceA data service operation that is bound to a URI that does not have a sideeffect on data exposed by the data service.
— Computer ScienceThe broad, general, and enduring role for which an organization is designed, equipped, and trained.
— USA Army