The document discusses several models of communication: - Aristotle's model from 300 BC focused on oratory and the role of the speaker. It emphasized content, delivery, emotion, reason, credibility and arguments. - Laswell's 1948 model examined who communicates what through which channel to whom with what effect. - Shannon and Weaver's 1949 model focused on information theory and the transmission and reception of messages between a transmitter and receiver. It considered sources of noise. - Schramm's 1954 model stated communication requires common experiences between sender and receiver. - Berlo's 1960 model identified controlling factors for the source, message, channel and receiver. - Dance's 1967 model viewed communication as evolving over time based