00768cam a2200169 4500 2964569 TxAuBib 20080212120000.0 100305s2004||||||||||||||||||||||||eng|u TxAuBib Communication Matrix: A Communication Skill Assessment. Oregon Health and Science University : Design to Learn Projects, 2004. The Communication Matrix is a free AAC assessment tool designed to pinpoint exactly how an individual is communicating and to provide a framework for determining logical communication goals. 20080212. Rowland, Charity, Ph.D.