What defines 'Coded Access' as a selection method?

Coded Access as a selection method involves a sequence of movements that act as a code for each item. This approach is particularly useful for individuals who may have limited ability to interact with traditional input methods. By assigning specific movements or gestures to represent different choices or actions, users can access options in a way that accommodates their unique needs.

For example, someone might use a specific pattern of head movements or gestures to select a specific item on a communication device. Each distinct movement correlates to a particular item, allowing for a customized and effective means of interaction. This method enhances user independence and control, particularly for those with physical limitations that make standard input methods challenging.

In contrast, other selection methods like verbal commands or button presses do not provide the nuanced flexibility and customization that coded access offers. Thus, the uniqueness of coded access lies in its ability to translate complex sequences into meaningful commands tailored to the user's abilities.