What do spatial characteristics of a control interface include regarding targets?

The spatial characteristics of a control interface are critical in designing effective assistive technology systems. The size of the targets and the amount of space between them directly influence how easily a user can interact with the interface. Larger targets are generally easier to hit, especially for individuals with motor control difficulties. Adequate spacing between targets minimizes the chances of unintentional selection, which can be particularly important for users who may have tremors or other motor impairments.

Understanding spatial characteristics is essential because they determine how accessible the interface is for various users. If targets are too close together, it may lead to frustration and errors, adversely affecting user experience and efficiency. This consideration is essential in creating user-friendly interfaces that meet the needs of individuals with diverse abilities.