The methodological soundness of a number of communicational models is tested for relevance to communicative disorders. Existing models lack isomorphism in relating environment to language structure. A new model, useful in classification of communicative disorders, is proposed, tested, and found to encompass (1) an indication that language is a tool for human adjustment, (2) an accounting for the variables that work together in the process of symbolizing, (3) feedback, (4) an explanation for disordered communication, (5) a provision for all the receptive-Expressive and central processes, and (6) a means of harmonizing interdisciplinary research in communication. (CH)