Individuals with severe disabilities often experience complex communication disorders. Deficits in communication and language skills are so basic that they affect many other skill areas including social relationships, community integration, educational achievement and employment outcomes. Individuals with 'labels' such as autism, multiple disabilities, deaf blindness and those who have various low-incidence disabilities may exhibit a perplexing mosaic of strengths and apparent deficits related to communication skills: such skill profiles are not well evaluated through typical assessment instruments. Without a comprehensive and consistent assessment protocol, appropriate educational intervention or speech-language therapy is not possible. Appropriate communication assessment, intervention and therapy is especially lacking for individuals with severe disabilities who are nonverbal or minimally verbal, who may have no effective means of expression. The proposed Development project will adapt, refine, evaluate and market an innovative technological e-tool designed to provide appropriate assessment of communication skills for individuals with severe disabilities. The novel e-tool will harness the potential of an online communication assessment protocol to achieve immediate and meaningful individual-level outcomes in the form of cost effective and appropriate assessment, generation of appropriate educational and therapeutic goals, and monitoring of progress. Www.communicationmatrix.orq is a prototype online assessment tool for evaluating the communication skills of individuals at the earliest stages of communication that is based on the valid and reliable Communication Matrix (Rowland, 1990, 1996, 2004). The new e-tool is designed to be used by caregivers and professionals.