Figure 9: This Matrix kicked off a wonderful conversation with the team and family as the unaided and aided AAC tools and systems enhanced his communication in different ways with different partners. The ā€œPā€ indicated in level VII are his pre-programmed messages, used strategically, so that the learner could be a more efficient communicator. This image is reprinted with permission and is a representation of the printed version of the Communication Matrix (Rowland, 2004).