Grid-Based Interface

An interaction paradigm that divides a screen or workspace into a grid of cells, allowing users to navigate by specifying grid coordinates rather than precise pixel positions. Grid-based interfaces are particularly valuable for non-visual access because they provide a structured spatial framework that can be communicated through speech or other non-visual feedback. In assistive technology, grids are commonly mapped to keyboard layouts (such as the telephone numpad) and may support recursive subdivision, where each cell can be further divided into sub-grids for progressively finer positioning. This approach enables blind users and those unable to use a mouse to interact with inherently spatial content like drawings, maps, and graphical interfaces.