What is it?
AAC access methods are the different ways a person can select and communicate messages using an augmentative and alternative communication (AAC) system. Direct touch is one option, but learners may also access AAC using eye gaze, switches, scanning, a mouse or joystick, head tracking, keyguards, styluses, or other alternative access methods. The best access method is one that allows the individual to communicate as efficiently, accurately, and comfortably as possible.
How to use it?
Consider how the individual moves, sees, hears, positions their body, and interacts with materials across different environments and activities. Explore multiple access options and adjust features such as button size, spacing, selection settings, dwell time, keyguards, switch placement, or device positioning as needed. Access should be evaluated during meaningful communication rather than through isolated motor tasks alone. Collaborate with the AAC user and relevant team members, such as SLPs, OTs, PTs, teachers, and AT specialists, and revisit access as skills, environments, and physical needs change.
Why use it?
A robust AAC system is only useful if the person can reliably access it. Motor, sensory, or positioning barriers can make communication slow, effortful, or unavailable even when the language system itself is appropriate. Identifying an effective access method can reduce physical effort, increase communication efficiency and independence, and ensure that learners have meaningful opportunities to communicate throughout the day.
