Developing AAC Systems & Assessing Communication Support Technologies
Working in inter-professional teams, Bridge School staff use the Participation Model (Beukelman & Mirenda, 2013) to guide the process of AAC system development and assess appropriate communication tools for each student. Students with SSPI and CCN learn to use a range of communication support technologies to meet daily communication needs. Taken together, these tools, and the strategies for how and when to use them across interactions, make up an individual’s AAC System.
The team assesses current functional participation relative to typical participation patterns of same-aged peers, as well as current barriers to communication and full participation in school activities. This includes an assessment of the student’s motor, linguistic, literacy, and sensory/perceptual skills and levels of current functioning in the school environment. (See section on Assessment: Documenting Present Levels of Performance, setting goals, and monitoring progress.) We consider a variety of communication support technologies and then test these possible tools and strategies in different situations to determine if they are effective at meeting specific communication needs. We teach the student to use those tools and strategies within classroom activities and meaningful social interactions. The team identifies the best times to provide multiple practice opportunities across the student’s day, and trains important communication partners and facilitators. We establish processes for monitoring progress and evaluating outcomes. Selection of communication support technologies and teaching strategies are modified as needed until effective communication tools/strategies are identified. If a commercially-available device is deemed an appropriate tool to meet the student’s current communication needs and increase effective participation, we work together with families to proceed with the funding and procurement process. This assessment process is repeated as the team identifies additional unmet communication needs and opportunities to maximize participation.
We view AAC system development as a dynamic, ongoing process. AAC systems are continually evolving to meet a student’s changing needs and abilities. An AACsystem is unique to each student and may include some or all of the following communication support technologies:
- Manual signs
- Spoken words
- Non-word vocalizations
- Eye contact
- Eye gaze
- Proximity cues
- Object-based symbol sets
- Picture symbols
- Communication boards or books
- Photo albums
- Remnants from personal experiences
- ABC boards for spelling out messages
- Communication books or boards organized for partner-assisted auditory scanning (PAAS)
- Recordable digitized speech devices, single messages or sequenced messages (Step-by-Step Communicator, Talking Brix, etc.)
- Multi-level, multi-message digitized speech devices (GoTalk, SuperTalker, TechTalk, etc.)
- Complex speech-generating devices (Tobii Dynavox I-Series+, PRC Accent, Saltillo NOVA Chat, etc.)
- Laptop or desktop computer
- Mainstream software and apps (MS Office, Google Chrome, iTunes, etc.)
- Social media platforms (Facebook, Instagram, Twitter, etc.)
- Video conferencing
- Mobile phone (including texting, media sharing, etc.)
- Landline phone
- Tablet or other mobile device
- Remote controls
- Media player (iPod, etc.)
- Video games
- Digital camera, video camera
- Household appliances
Other Assistive Technologies
- Independent mobility device (support walker, power wheelchair, etc.)
- Computer interface devices (switch interface, mouse emulator, joystick, etc.)
- Alternate keyboard
- Capability switches
- Mounting hardware
- Specialized software (screen readers, talking word processors, etc.)
Communication need, based on barriers
- Student needs a way to participate in social games and exchanges at recess with same-aged peers by: choosing peers to engage with, gaining peers’ attention, communicating directly with peers (gain attention, ask to play, communicate during activity, etc.)
- Student is positioned in walker with single switch access (no way to safely mount SGD).
- Instructional Assistant (IA) asks student where/with whom they want to play (IA gives choices and student responds with yes/no gestures).
- IA helps student move towards location or peer group, asks peers if student can join in play.
- IA continues to facilitate the interaction and “translate” student’s non-verbal cues throughout the interaction.
Communication support technologies to try
- Low-tech board with choices of favorite playground activities and peers, to use with partner-assisted auditory scanning (PAAS).
- Seek OT support to help student navigate playground terrain more independently.
- Teach student to use proximity cues, vocalization, and/or an attention-getting message programmed into Step-by-Step (SBS) mounted on walker to gain peers’ attention.
- Teach student to use pre-programmed message in SBS to ask “wanna play?” or “can I play?” (or similar message of student’s choosing).
- Role play with familiar partners at Bridge School first.
- Daily practice opportunities at morning recess.
- Once routine is established at school, ask parents about opportunities at playdates, playgrounds, etc.
- Train IA on PAAS procedure if necessary.
- OT trains IA on ways to support independent mobility on the playground.
- Train playground peers on student’s communication modes: how to ask student yes/no questions and how student answers, how to program student’s SBS with messages to support participation in group games, etc.
- Train parents on support strategies (PAAS, programming SBS, etc.)
Progress and outcomes
- Has student’s participation and communication in this context changed following the introduction of communication tools and strategies?
- Which tools and strategies have worked to meet the identified communication need?
- Was partner training successful?
- How have student and partners reacted to the communication support technologies being trialed?
Funding & Procurement
In the United States, funding models for communication support technologies, including speech-generating devices (SGDs), is locally regulated by individual states and school districts. As mainstream technologies become a more essential part of users’ AAC systems, funding models are increasingly in flux and laws are changing rapidly. Funding sources may include primary medical insurance, Medicare insurance, school district funding or, in many cases, privately funded by families. Below are some general resources for SGD funding.
- AAC-RERC Medicare Funding of AAC Technology
- AAC Funding Solutions from Assistive Technology Law Center
- Funding Overview from Tobii Dynavox
- Funding for AAC Devices from PRC
- Speech Generating Device Funding from AAC Institute
- Assistive Technology Devices and Services
- ATIA Funding Resources Guide
Roles and Responsibilities of Speech-Language Pathologists With Respect to Augmentative and Alternative Communication: Technical Report.
ASHA Special Interest Division 12: Augmentative and Alternative Communication (AAC) http://www.asha.org/policy/TR2004-00262/#sec1.7
Guidelines for Meeting the Communication Needs of Persons with Severe Disabilities
National Joint Committee for the Communication Needs of Persons with Severe Disabilities http://www.asha.org/policy/GL1992-00201/
National Joint Committee for the Communication Needs of Persons with Severe Disabilities (NJC) http://www.asha.org/NJC/
Beukelman, D. & Mirenda, P. (2013). Augmentative and Alternative Communication: Supporting children and adults with complex communication needs. Fourth Ed. Baltimore: Paul H. Brookes Publishing Co.