L16: Models of Communication

Good morning, everyone. Welcome to Lecture 16 of MGA-304. Last class we explored the client-agency relationship — what makes them flourish and what causes them to break down. Today we shift from the business side of advertising to the theoretical foundations of how communication itself works. Our topic is Models of Communication, and I promise that even though it sounds academic, these models will fundamentally change the way you think about every ad you see for the rest of your life. [0–10 min: Introduction] Here is a simple question to start: when Amul puts up a topical hoarding — say, one showing their Amul girl reacting to a cricket match result — why does everyone immediately understand the joke? The hoarding has a very simple image and three or four words. Yet millions of people instantly decode it, laugh, and often share it. What is happening in that communication process? Why does it work so efficiently? Conversely, think of an advertisement you have seen that you found confusing. Maybe a print ad with too much copy, or a television commercial where you watched it and then were not even sure what product was being advertised. What went wrong in that case? Both of these questions are answered by communication theory. Models of communication give us a framework to understand the journey a message takes from the mind of the sender to the mind of the receiver — and all the ways that journey can succeed or fail. [10–40 min: Core Content] Let us begin with the foundational model. The Basic Communication Model was developed by Claude Shannon and Warren Weaver in 1948 — originally for telecommunications engineering, not advertising. But it proved so powerful that communication scholars quickly adapted it for human communication. The Shannon-Weaver model has five components: Source, Message, Channel, Receiver, and Noise. The Source is the entity originating the communication — in advertising, this is the brand or the advertiser. The Message is the information or meaning the source wants to convey. Note carefully — the message is not the advertisement itself. The message is the intended meaning. Tanishq's message might be 'our jewellery celebrates the modern Indian woman's independence and achievement.' That is the meaning they want to transfer. The Channel is the medium through which the message travels — television, radio, print, outdoor, social media, or personal selling. The Receiver is the target audience — the person who receives and interprets the message. Noise is anything that interferes with accurate reception of the message. Shannon and Weaver were thinking of static on a telephone line. In advertising, noise is far more complex — it includes competitive clutter (all the other ads surrounding yours), consumer distraction, media fragmentation, language barriers, cultural differences, and psychological filtering. Now, Belch and Belch built on Shannon-Weaver to create a more comprehensive model specifically for marketing communication. They introduced two crucial additional concepts: Encoding and Decoding, and Feedback. Encoding is the process by which the source translates their intended message into symbolic form — words, images, sounds, colours. When the Ogilvy creative team writes a Fevicol script about a bus overflowing with passengers and nothing falling off, they are encoding the message 'Fevicol creates an unbreakable bond' into a humorous, memorable narrative. Decoding is the process by which the receiver interprets those symbols and extracts meaning. Here is where things get fascinating and complicated. The decoded meaning — what the receiver actually takes away — may or may not match the encoded meaning. Decoding is influenced by the receiver's personal experiences, cultural background, attitudes, knowledge, and mental state at the moment of exposure. The Feedback loop is the receiver's response back to the source. In traditional mass media advertising, feedback was indirect and delayed — sales data, brand tracking surveys, focus groups. In digital communication, feedback is direct and immediate — comments, likes, shares, and click-through rates give the brand near-instant signals about how the message was received. Now let us examine Field of Experience — a concept added by communication scholars Schramm and Osgood. The field of experience is the sum total of an individual's knowledge, attitudes, values, cultural background, and personal history. For communication to be successful, the sender and receiver must share overlapping fields of experience — there must be enough common ground for the encoded symbols to be decoded accurately. This has enormous implications for advertising in India. India is linguistically and culturally extraordinarily diverse. A campaign encoded using South Mumbai upper-middle-class cultural references will be decoded very differently by a consumer in rural Bihar. This is why successful pan-India campaigns — think Amul, Fevicol, or Cadbury Dairy Milk — carefully choose symbols and situations that fall within the shared field of experience of a very broad Indian population. The Fevicol bus commercial works because overcrowded buses are universally recognised and relatable across India, regardless of language or region. Let us now extend the model to the IMC context. Belch and Belch describe the communication process in terms of the Promotional Mix. Each element of the promotional mix — advertising, PR, sales promotion, direct marketing, personal selling — can be understood as a different way of encoding and transmitting a message through a different channel. The IMC perspective argues that all these channels must encode a consistent message — one voice, one brand story — so that regardless of which channel the consumer encounters, the decoded meaning is consistent. When Tanishq runs a television commercial showing a modern Indian bride choosing her own jewellery, and simultaneously runs Instagram posts with the same visual language and emotional tone, and their in-store experience reflects the same values — that consistency across channels means that wherever the consumer touches the brand, they decode the same meaning. That is what integrated communication achieves. Now I want to introduce a concept that goes slightly beyond Shannon-Weaver: Semiotics, the study of signs and symbols. Advertising is fundamentally a semiotic exercise. Every element of an advertisement — colour, typography, imagery, music, the celebrity chosen, the setting — carries meaning beyond its literal content. When Asian Paints uses warm, golden light in their advertisements, the lighting is not just aesthetic — it encodes 'warmth, home, belonging.' When a luxury brand shoots on crisp white backgrounds, the whiteness encodes 'purity, premium, simplicity.' Understanding semiotics helps you analyse why certain advertisements resonate deeply and others fall flat. When the symbolic choices in an ad align with the target audience's cultural codes — their shared system of meaning — the communication succeeds. When symbols are misread or have unintended cultural connotations, communication fails. In India, colour choices are particularly loaded with cultural meaning — white is associated with mourning in many communities, saffron carries religious and political connotations, and red is auspicious. A brand that ignores these cultural codes in their visual encoding will find their message decoded in unintended ways. [40–55 min: Activity and Discussion] Let us do a quick semiotic analysis activity. I am going to describe three advertisements — imaginary ones — and I want you to identify what is being encoded, through which symbols, and predict how a typical urban Indian consumer might decode it. Advertisement one: A television commercial for Surf Excel. An eight-year-old boy in a white school uniform helps a visually impaired classmate find her way across a muddy playing field. He gets his uniform filthy. His mother at home is proud of him. Tagline: 'Daag acche hain.' What is being encoded? The message is not 'our detergent cleans well' — that is a functional claim. The message is 'dirtiness in service of goodness is beautiful.' The encoded symbols are a child's innocence, the act of helping, the school uniform as a marker of aspiration, and the mother's pride. The detergent barely features in the communication. The brand is positioned as understanding and celebrating Indian values — selflessness, compassion, aspiration. How would it be decoded? Most Indian mothers would decode it as 'a brand that understands what really matters in raising children.' The decoding closely matches the encoding because the symbols chosen fall within a universally shared field of experience among the target audience. Now, discussion question for you: Think of an advertisement you have seen recently — on television, Instagram, or a hoarding — where you think the encoding and decoding did not match. Where the brand intended one meaning but you took away a different meaning. What went wrong? Discuss with your neighbour. A few of you described ads for apps or tech brands that used English language cultural references that felt disconnected in an Indian context. Exactly — that is a field of experience mismatch. The brand's creative team was encoding in one cultural language, and the Indian consumer was decoding in a different one. [55–60 min: Summary and Assignment] Today we covered the foundational Shannon-Weaver model with its five components — source, message, channel, receiver, and noise. We extended it with encoding and decoding, and the feedback loop. We introduced the field of experience concept and showed why shared cultural ground is essential for effective communication. We applied semiotics to advertising and saw how symbols carry meaning beyond their literal content. We used Amul, Fevicol, Tanishq, Surf Excel, and Asian Paints as examples. Assignment: Find any print advertisement from a magazine or newspaper — or a screenshot of a social media ad. Write a one-page communication analysis: identify the source, the intended message, the channel, the target receiver, and describe what symbols are being used for encoding. Then predict whether the decoding will match the intended meaning, and identify any potential sources of noise. Next class — Lecture 17 — we will examine Response Hierarchy Models — the AIDA model, the Hierarchy of Effects, the Innovation Adoption model — which explain the sequential steps a consumer moves through from first exposure to an advertisement all the way to purchase. See you then.