Six levels of communication may be defined as the information processing system for speech communication: within one (intrapersonal communication); one to one (interpersonal communication); one to few (small group communication); one to many (public communication); one mediated to many (mass communication); and one mediated over time to many (public address). Four phases constitute the mission orientation of speech as an academic field. Phase one consists of the relationship between intrapersonal communication and personal development in the first twelve years of life. Phase two encompasses social development as an emphasis of training in interpersonal communication. Phase three deals with civic development for the purpose of animating a participatory, technologically mediated democracy. Phase four describes speech communication at the college level and its dedication to the professional development of the student. (A list of functions for teachers involved in speech communication education is outlined, and analytic charts are provided.) (TS)