  We describe a co-design approach to design the online WebSoKeyTo used to
design AAC. This co-design was carried out between a team of therapists and a
team of human-computer interaction researchers. Our approach begins with the
use and evaluation of an existing SoKeyTo AAC design application. This step was
essential in the awareness and definition of the needs by the therapists and in
the understanding of the poor usability scores of SoKeyTo by the researchers.
We then describe the various phases (focus group, brainstorming, prototyping)
with the co-design choices retained. An evaluation of WebSoKeyTo is in
progress.
