Mode (computer interface)

In user interface design, a mode is a distinct setting within a computer program or any physical machine interface, in which the same user input will produce perceived different results than it would in other settings. The best-known modal interface components are probably the Caps lock and Insert keys on the standard computer keyboard, both of which put the user's typing into a different mode after being pressed, then return it to the regular mode after being re-pressed.

An interface that uses no modes is known as a modeless interface. Modeless interfaces intend to avoid mode errors by making it impossible for the user to commit them.

Definition

A precise definition is given by Jef Raskin in his book The Humane Interface:

"An human-machine interface is modal with respect to a given gesture when (1) the current state of the interface is not the user's locus of attention and (2) the interface will execute one among several different responses to the gesture, depending on the system's current state." (Page 42).

Mode (literature)

In literature, a mode is an employed method or approach, identifiable within a written work. As descriptive terms, form and genre are often used inaccurately instead of mode; for example, the pastoral mode is often mistakenly identified as a genre. The Writers Web site feature, A List of Important Literary Terms, defines mode thus:

History of mode

In his Poetics, the ancient Greek philosopher Aristotle uses 'mode' in a more specific sense. Kinds of 'poetry' (the term includes drama, flute music, and lyre music for Aristotle), he writes, may be differentiated in three ways: according to their medium of imitation, according to their objects of imitation, and according to their mode or 'manner' of imitation (section I). "For the medium being the same, and the objects the same, the poet may imitate by narration—in which case he can either take another personality as Homer does, or speak in his own person, unchanged—or he may present all his characters as living and moving before us" (section III). According to this definition, 'narrative' and 'dramatic' are modes of fiction: