The communication sequence SPEAKER $\rightarrow$ SPEECH $\rightarrow$ AUDIENCE represents a fundamental, linear model of communication.
This simple structure directly reflects the core components of Aristotle's model of communication, which focused on public speaking and rhetoric. Aristotle emphasized the speaker's role in persuading the audience through their speech. This early model is primarily concerned with the act of speaking and its effect on the listeners.
While other models like Berlo's (SMCR) or Westley and Maclean's are more complex and include elements like feedback, encoding/decoding, and channels, the basic SPEAKER $\rightarrow$ SPEECH $\rightarrow$ AUDIENCE sequence is most characteristic of Aristotle's foundational approach to communication theory.
| Elements of Communication | Model of Communication |
| (1) Source - encoder-signed-Decoder Destination Decoder - Destination | (I) Berlo's model of communication |
| (2) Sender-Message - channel - Receiver | (II) Schramm model of communication |
| (3) Communication - Message - channel Treatment of message - audience - Audience Response | (III) Rogers and Shoemaker's Model of communication |
| (4) Source - Message - Channel - Receiving Individual - Effects | (IV) Leagon's model of communication |