Classical Communication Models

2.1 Aristotle's Rhetorical Model (c. 350 BCE)

The oldest organised thinking on communication comes from Aristotle's Rhetoric (c. 350 BCE). Aristotle analysed public speaking and persuasion, identifying three essential elements:

Element	Description	Modern Application
Ethos	Credibility and character of the speaker	A collector's reputation for honesty increases compliance
Pathos	Emotional appeal — connecting with audience feelings	Using personal stories in drought-relief messaging
Logos	Logical argument — evidence, facts, reasoning	Statistical data in budget presentations

Aristotle also identified five parts of a speech: Invention, Arrangement, Style, Memory, Delivery — still used in modern public speaking training.

2.2 Harold Lasswell's Model (1948)

Harold Lasswell (1948) described communication as answering five questions:

"Who says What in Which Channel to Whom with What Effect?"

Component	Analysis Focus
Who	Source/communicator analysis
Says What	Content analysis
In Which Channel	Media analysis
To Whom	Audience analysis
With What Effect	Effect analysis

Lasswell's model was primarily designed for mass media communication and political propaganda analysis during WWII. It is linear (no feedback) and ignores noise — but remains useful for analysing public information campaigns.

2.3 Shannon-Weaver Mathematical Model (1949)

Claude Shannon (Bell Labs engineer) and Warren Weaver (Rockefeller Foundation) published "A Mathematical Theory of Communication" in 1949. Originally designed for telephone signal transmission, it became the foundational model for all subsequent communication theory.

The model has 6 components:

• Information Source: Origin of the message (human mind, data system)
• Transmitter/Encoder: Converts the message into a transmittable signal (voice, digital signal)
• Channel: Medium through which the signal travels — telephone wire, radio waves, air, internet
• Noise: Interference or distortion at any stage — physical, semantic, or psychological
• Receiver/Decoder: Converts the signal back into a message
• Destination: The intended receiver (person or machine)

Key concepts introduced:

• Entropy: Measure of uncertainty or randomness in a message; higher entropy = more information (but also more confusion)
• Redundancy: Repetition to combat noise — important in official government communication
• Channel capacity: Maximum information that can be transmitted error-free through a channel

Limitation: No feedback mechanism; treats communication as one-way transmission.

2.4 Berlo's SMCR Model (1960)

David Berlo (1960, The Process of Communication) expanded Shannon-Weaver by focusing on the human factors in communication:

Component	Sub-factors
S — Source	Communication skills, Attitudes, Knowledge, Social System, Culture
M — Message	Content, Elements, Treatment, Structure, Code
C — Channel	Sight (visual), Hearing (auditory), Touch (tactile), Smell (olfactory), Taste (gustatory)
R — Receiver	Same 5 factors as Source — must match for effective communication

Key insight of SMCR: Effective communication requires overlap between Source and Receiver in communication skills, knowledge, and cultural background. A collector who uses technical revenue terminology with illiterate farmers creates a semantic-cultural barrier.

2.5 Schramm's Interactive/Circular Model (1954)

Wilbur Schramm (1954) — the "father of communication studies" — introduced feedback into the model and argued that communication is a circular, iterative process. Key innovations:

1. Field of Experience: Each communicator brings their unique knowledge, culture, and emotions — messages are interpreted through this filter
2. Feedback: Receiver's response becomes a new message from sender; communication is never one-way
3. Shared Field: The overlap between sender's and receiver's experience determines communication effectiveness

Implication: A government officer explaining MNREGA benefits to rural women must communicate within the women's field of experience — using local language, familiar analogies, and culturally appropriate examples.

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