Motor topology in clinician-friendly terms
EyeSay treats learned motor coordinates as an invariant. Permanent positions are not re-ranked by context, routines or prediction. Additional vocabulary can be reached through expansion paths without silently relocating the base map. The design question is therefore not “which 48 words?” but “which stable coordinates form the motor-language plane, and how can more language be reached without moving them?”
Context is assistance, not asserted intent
The Context Halo is a separate adaptive plane for situationally useful possibilities. Suggestions remain possibilities until the communicator deliberately selects one. Nothing in the Halo becomes authored communication on its own, and contextual assistance cannot reorder the learned Voice Canvas.
Partner modelling is not communicator authorship
Model Mode can create transient partner-side visual demonstrations on the mirrored topology. A partner model cannot become the communicator's utterance or become something the communicator is recorded as having said. Partner events cannot append to the communicator's utterance ribbon, cannot trigger speech on their device, cannot enter communicator history and cannot be counted as communicator selections. The separation is an implementation boundary, not merely an instruction to staff.
Current alternative-access capability
The current web build supports direct touch and keyboard-accessible controls, visible focus, high-contrast and reduced-motion patterns, and includes scanning work in development. Dedicated switch profiles, formal eye-gaze validation, keyguard-specific layouts and broad specialist-hardware compatibility should not be assumed complete until they are explicitly documented and tested.
See the Accessibility page for the current published capability and limitations.
Evidence maturity is stated literally
Product-behaviour statements are supported by implementation and regression evidence. Broader AAC practice is not presented as EyeSay-specific outcome evidence, and hypotheses about possible communication or participation outcomes remain hypotheses until appropriate EyeSay-specific evaluation exists. Internal evaluation, external validation and independent replication are treated as different evidence states.
The Research and Evidence page carries the current public evidence boundary.
A school and team implementation path
Step 1
Agree the stable-map rule
Everyone supporting the communicator works from the same Voice Canvas topology. Do not reorganise learned positions to make a lesson, routine or partner prompt easier.
Step 2
Choose ordinary modelling opportunities
Identify a few recurring moments across home, school and therapy where partners can model comments, questions, refusal, help, social language and requests without requiring imitation.
Step 3
Protect agency across settings
Treat STOP, NO, HELP, BREAK and other self-advocacy language as communication. Do not make access conditional on task completion, compliance or a correct response.
Step 4
Review access barriers, not inferred intent
When communication breaks down, document the observable access or vocabulary gap. Avoid converting a search, pause or abandoned path into a claim about competence, emotion or intended meaning.
What modelling is — and what it isn't
EyeSay is designed to support aided-language modelling as a communication-partner practice. It should not be used as a compliance task, a quiz or a demand for imitation. We do not claim that modelling guarantees a particular language outcome; EyeSay-specific effectiveness claims require EyeSay-specific evidence.
For teams already familiar with other AAC systems
EyeSay is not asking clinicians to discard established AAC practice. The quickest orientation is architectural: a stable motor-language plane remains separate from a changing context plane; a permanent agency layer remains reachable; and partner modelling uses the same topology while remaining outside communicator authorship. Those are EyeSay design choices, not claims that another AAC system is unsafe or ineffective.
Take it to the team
Printable professional resources
Download the Model with EyeSay quick-start and the same-topology low-tech board. Both are public, versioned, screen-reader-readable HTML resources with A4 print layouts and no account requirement.