The actions that the project deliverables are, or should be, capable of performing. [D02802]

The ability of equipment to operate as expected during actual service conditions in a central office. [T1.304-1989]

Features built into a search interface that determine the ease with which users may formulate queries and obtain results. Well-designed search software enables the user to: Identify the database(s) mo [..]

The spectrum of tasks that a computer program or ERP system can perform.

(n) capable of serving a purpose well

The ability to accomplish a certain task. For example, the functionality (ability) of a bottle opener is to open bottles. Also see Feature

Ability of a paper product to meet the user’s performance requirements, such as running in office equipment, on an offset printing press, packaging consumer and industrial items, presenting a product [..]

  A Principle of Sustainable Safety, that the design is fit for purpose – both functional and place related.

is the degree to which the M&S application completely captures all of the desired functional modules that need to be present.

A set of capabilities associated with computer hardware, software or other electronic devices.

Design patents, registered designs, and architectural rights cannot usually protect …

Represents a capability (or a set of capabilities) offered by the system toward external entities, or by a sub part of the system toward another sub part of the system.

The extent of possibilities provided by a system [Meyer 1997]

The ability of a structure or material to perform or be adapted to a particular use. Often pertains to design but has broader connotations for thinking about art and its relation to popular culture