In information technology, functionality (from Latin functio meaning "to perform") is the sum or any aspect of what a product, such as a software application or computing device, can do for a user.
By submitting your personal information, you agree that TechTarget and its partners may contact you regarding relevant content, products and special offers.
A product's functionality is used by marketers to identify product features and enables a user to have a set of capabilities. Functionality may or may not be easy to use.
Also see function.