Glossary

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Continuous Specification(also: Continuous Positioning, Continuous Cursor Movement)

In cursor control interfaces, a positioning method where the cursor moves steadily in a given direction at a controlled rate until the user signals it to stop. This approach allows precise positioning because the user can halt movement at exactly the desired location, but it is…

Direction-Based Navigation(also: Directional Navigation, Direction-Based Cursor Control)

A cursor control method where users issue directional commands such as "move left," "move up," or "move down" to reposition the cursor on screen. In speech-based implementations, these commands move the cursor continuously or in fixed increments. Direction-based navigation is…

Discrete Specification(also: Discrete Positioning, Grid-Based Positioning)

In cursor control interfaces, a positioning method where the user selects from a finite set of predefined locations to move the cursor to an approximate position quickly. Examples include grid-based systems where the screen is divided into numbered cells, or ghost cursor systems…

Ghost Cursor(also: Phantom Cursor, Proxy Cursor)

A visual indicator displayed on screen that shows a potential cursor position, used in speech-based and alternative cursor movement systems. Multiple ghost cursors can be displayed simultaneously, typically aligned in a row or column, allowing users to quickly specify an…

Grid-Based Cursor Control(also: Grid-Based Navigation, Grid Overlay Navigation)

A hands-free cursor positioning technique that overlays a numbered grid on the screen, allowing users to select a cell by voice command or other input to recursively zoom into smaller screen regions until the desired target is reached. Grid-based approaches reduce the vocabulary…

Overshoot(also: Cursor Overshoot, Target Overshoot)

In pointing device interaction, the phenomenon where the cursor travels beyond the intended target before the user can stop it, requiring corrective movements back toward the target. Overshoot is measured as the maximum distance traveled beyond the target as a percentage of the…

Pointing Device Gain(also: Control-Display Gain, Mouse Sensitivity, Pointer Speed)

The ratio between the movement of a physical input device (such as a mouse or trackball) and the resulting movement of the cursor on screen, typically measured in pixels per inch of device movement. Higher gain means the cursor moves further for a given physical movement. In…

Speech-Based Cursor Movement(also: Voice-Controlled Cursor, Voice Cursor Control)

A technique for moving the on-screen cursor using voice commands rather than physical manipulation of a pointing device. Speech-based cursor movement systems typically use one of two approaches: discrete specification, where the user speaks a command to jump the cursor to a…

Target-Based Navigation(also: Target-Based Cursor Control, Object-Based Navigation)

A cursor control method where users identify the desired destination directly by name or label, such as saying "Select Friday" to move the cursor to that word on screen. Target-based navigation can be efficient when targets are clearly identifiable, but becomes error-prone as…

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