Communication Processes and Models

Introduction

Communication is the organized production, transmission, interpretation and negotiation of meaning. It is central to journalism, broadcasting, advertising, public relations, entertainment media and media management. A media organization does not merely distribute messages: it selects issues, encodes meanings, chooses channels, manages audiences, receives responses and operates within political, cultural, technological and economic contexts.

Communication models are simplified conceptual representations of this process. They help students identify participants, message flows, channels, feedback, barriers and points of control. However, every model also excludes some aspects of real communication. A linear model may clarify transmission but understate audience activity; an interactional model introduces feedback but may still imply turns; a transactional model recognizes simultaneous meaning-making but can become too broad for precise analysis.

This chapter examines major models associated with Aristotle, Lasswell, Shannon and Weaver, Schramm, Berlo, and Westley and MacLean. It then applies them to media practice, with particular attention to feedback, noise, context, gatekeeping and ethical responsibility.

Learning Objectives

By the end of this chapter, students should be able to:

• explain communication as a process rather than a single event;
• distinguish linear, interactional and transactional models;
• describe the major contributions and limitations of important communication models;
• analyse the roles of feedback, noise, context and gatekeeping;
• apply communication models to media-management situations;
• evaluate how digital platforms alter traditional communication relationships; and
• identify ethical risks associated with message selection, encoding and distribution.

1. Communication as a Process

Communication involves at least four connected activities: production, circulation, interpretation and response. A journalist produces a news report, a platform circulates it, audiences interpret it through prior knowledge, and users respond through discussion, sharing or avoidance. These activities may occur rapidly and simultaneously.

Several distinctions are important. A message is the symbolic content being communicated. Encoding is the conversion of ideas into words, images, sounds, gestures or other signs. Decoding is the interpretation of those signs. A channel is the medium through which a message travels, such as radio, television, print, email or a social-media platform. A receiver is the person or group for whom a message is intended or who actually encounters it. In contemporary media, the receiver may also become a producer, editor and distributor.

Meaning is not contained entirely in a message. It emerges from the relationship between signs, communicators and context. The phrase “breaking news,” for example, has different implications for a newsroom editor, a government spokesperson and an audience member who has already seen the story elsewhere.

Communication is also purposeful but not always successful. A public-service announcement may be designed to change behaviour, yet its audience may misunderstand it, reject its assumptions or never encounter it. Communication effectiveness therefore cannot be assessed only by asking whether a message was transmitted. It must also be assessed through comprehension, relevance, credibility, response and consequences.

2. Three Families of Communication Models

Linear models

Linear models represent communication as a one-way movement from source to receiver. They are useful for analysing speeches, advertisements, announcements and broadcast transmission. Their principal weakness is that they tend to treat audiences as passive and communication as a completed transfer.

Interactional models

Interactional models add feedback. Communication becomes a cycle in which participants alternate roles as sender and receiver. These models are more realistic for interviews, classroom discussion, telephone conversations and audience-response systems. Nevertheless, they may still imply that people communicate in separate turns rather than simultaneously.

Transactional models

Transactional models view communication as a simultaneous process. Participants continuously interpret verbal and non-verbal cues, adapt to one another and co-create meaning within a social and cultural context. This approach is especially helpful for analysing live broadcasts, political debates, online communities and organizational meetings.

3. Classical and Linear Models

Aristotle’s rhetorical model

Aristotle’s model is one of the earliest systematic approaches to communication. It focuses on a speaker who constructs a speech for an audience in order to achieve an effect. The central elements are speaker, speech, occasion or situation, audience and effect.

The model is especially relevant to public speaking, political communication, advocacy and media presentation. It encourages communicators to consider audience characteristics and persuasive purpose. Aristotle’s rhetorical appeals—ethos, pathos and logos—remain useful: ethos concerns perceived credibility, pathos concerns emotional appeal, and logos concerns reasoning and evidence.

Its limitation is its strong speaker-centred and one-directional orientation. It gives limited attention to feedback, audience interpretation, technological mediation and unequal power. It can also encourage the assumption that successful communication is primarily a matter of persuasive performance.

Lasswell’s formula

Harold Lasswell summarized mass communication through the question: “Who says what, in which channel, to whom, with what effect?” The formula identifies five analytical components:

Lasswell’s model is valuable because it links message production to outcomes. It supports campaign planning, content analysis and evaluation. However, it remains essentially linear. It does not adequately show feedback, audience negotiation, competing interpretations or the way institutions and algorithms intervene between message and effect.

Shannon–Weaver model

The Shannon–Weaver model was developed in the context of information transmission and telecommunications. Its core sequence is information source, transmitter, signal, channel, receiver and destination. A message is encoded into a signal, transmitted through a channel and decoded at the receiving end. Noise may interfere with the signal.

In media studies, the model provides a precise vocabulary for technical and organizational disruptions. Noise can include poor audio, weak connectivity, ambiguous wording, cultural misunderstanding, selective attention or competing messages. The original engineering model was not designed as a complete theory of human meaning, so applying it to social communication requires caution.

The model distinguishes technical transmission from semantic interpretation. A television signal may arrive perfectly while the audience rejects the report as biased. Conversely, a technically imperfect message may be understood because the audience supplies context. Thus, communication quality cannot be reduced to signal accuracy.

4. Interactional and Circular Models

Schramm’s model

Wilbur Schramm emphasized the importance of interpretation and feedback. In his model, each participant acts both as encoder and decoder. Communication is more successful when the participants’ fields of experience overlap. Fields of experience include language, education, culture, professional knowledge, social identity and previous media exposure.

For example, a public-health message using technical epidemiological terms may be clear to medical professionals but inaccessible to many citizens. The problem is not necessarily transmission; it is limited overlap in fields of experience. A skilled communicator therefore adjusts language, examples and visual design to the audience.

Schramm’s model also treats feedback as essential. A communicator can revise a message after observing questions, ratings, comments, complaints or behavioural responses. In mass media, feedback may be delayed, indirect or filtered through research systems, editors and platforms.

Feedback

Feedback is information about how a message has been received or what response it has generated. It may be immediate, such as a question during a live interview, or delayed, such as subscription data. It may be explicit, such as a complaint, or inferred, such as a decline in audience retention.

Feedback serves several functions:

• corrective: identifying misunderstanding or technical failure;
• adaptive: helping communicators revise content and delivery;
• evaluative: indicating whether objectives were achieved;
• relational: signalling approval, resistance or trust; and
• organizational: informing scheduling, investment and editorial decisions.

Feedback is not automatically truthful or representative. Online comments may be produced by a small, highly motivated minority. Metrics may reward attention rather than understanding. A responsible media manager therefore triangulates feedback using audience research, qualitative evidence, content analysis and professional judgment.

5. Berlo’s SMCR Model

David Berlo’s SMCR model identifies four major components: Source, Message, Channel and Receiver.

The source and receiver are influenced by communication skills, attitudes, knowledge, social system and culture. The message includes content, elements, treatment, structure and code. The channel refers to sensory routes—seeing, hearing, touching, smelling and tasting—although media technologies select and organize these routes.

Berlo’s model is useful for designing media content. A campaign may fail because the source lacks credibility, the message uses an unsuitable code, the channel does not fit the audience, or the receiver lacks relevant knowledge. The model also highlights that communication competence is not solely a technical skill; it is shaped by social position and culture.

Its limitations include a relatively linear structure and limited treatment of feedback, power, institutions and platform algorithms. It may also imply that communication problems can be solved primarily by improving source, message, channel or receiver characteristics, even when the underlying problem is political inequality or lack of trust.

6. Westley–MacLean Model and Gatekeeping

The Westley–MacLean model was designed to explain communication in complex social and mass-media systems. Events and ideas exist in the environment. Advocates, citizens and other communicators select and interpret these events, while media organizations further select, transform and distribute them to audiences. Audience responses may return through feedback channels.

The model is important because it places gatekeeping at the centre of mass communication. Gatekeeping is the process through which individuals and institutions select, emphasize, omit or frame information. A reporter chooses which event to cover; an editor chooses the headline and placement; a platform ranks posts; an audience member chooses what to click and share.

Gatekeeping is not necessarily malicious. Selection is unavoidable because attention, time and space are limited. Yet selection has consequences. Repeated coverage can make an issue appear more important, while omission can make it invisible. Gatekeeping therefore involves power and accountability.

Gatekeeping occurs at several levels:

1. Individual: professional judgment, values and experience.
2. Routine: deadlines, formats, news values and production workflows.
3. Organizational: ownership, editorial policy and commercial priorities.
4. Institutional: relations with governments, advertisers and public relations sources.
5. Technological: search rankings, recommendation systems and moderation tools.
6. Audience: choices to watch, ignore, comment on or share content.

The model’s strength is its recognition that media messages are constructed through multiple stages. Its limitation is that it can be difficult to specify exactly where influence begins and ends, particularly in networked media where users, platforms and professional organizations interact continuously.

7. Context, Noise and Meaning

Context

Context includes the physical, social, cultural, institutional, historical and technological conditions surrounding communication. The same image may communicate celebration in one setting and protest in another. Context affects what is considered credible, appropriate, offensive or urgent.

Media managers should consider at least five contexts:

• situational context: where and when communication occurs;
• relational context: the relationship between communicators;
• cultural context: shared values, symbols and norms;
• institutional context: organizational rules and power relations; and
• technological context: the affordances and constraints of the medium.

Noise

Noise is any factor that disrupts, distorts or competes with communication. Technical noise includes interference, low resolution and broken links. Semantic noise arises from jargon, ambiguity or translation problems. Psychological noise includes anxiety, prejudice and distraction. Organizational noise may result from poor coordination, unclear authority or conflicting objectives.

Noise is not always external to the receiver. Selective exposure and confirmation bias can lead audiences to notice information that supports existing beliefs while ignoring contrary evidence. A communication strategy should therefore reduce avoidable noise but also recognize that interpretation is active and socially situated.

8. Applying Models in Media Management

Models become useful when they guide decisions. Consider a broadcaster planning a public campaign about emergency preparedness.

The Aristotle model prompts questions about speaker credibility, rhetorical appeal and audience effect. Lasswell’s formula structures the campaign brief: who is speaking, what is being said, through which channel, to whom and with what intended outcome. Shannon–Weaver directs attention to audio quality, transmission reliability and technical interference. Schramm emphasizes language, cultural experience and feedback. Berlo helps assess source competence, message code and channel suitability. Westley–MacLean reveals how authorities, journalists, editors, platforms and audiences select and reshape information.

A manager should not select one model as universally correct. Instead, models can be layered. A campaign may be technically transmitted according to Shannon–Weaver, rhetorically designed according to Aristotle, audience-adapted according to Schramm and institutionally filtered according to Westley–MacLean.

9. Illustrative Case: A Misinterpreted Public-Health Video

Background

A fictional city health department releases a short video encouraging vaccination. The video uses medical terminology, a fast pace and a doctor speaking in a formal studio. It is distributed through television and social media.

Problem

The video receives substantial exposure but produces confusion. Comments suggest that viewers do not understand eligibility rules. Some users interpret a brief reference to side effects as evidence that the vaccine is unsafe. The department initially concludes that the campaign failed because of online misinformation.

Analysis

The Shannon–Weaver model shows no major technical breakdown: the video was delivered clearly. Berlo’s model identifies a mismatch between message code and receiver knowledge. Schramm’s concept of fields of experience reveals limited overlap between medical language and everyday audience language. Aristotle’s framework raises questions about ethos: the doctor is credible professionally, but the institutional setting appears distant. Westley–MacLean highlights gatekeeping by news pages and platforms that reproduce only the most controversial excerpt.

Approach

The department conducts interviews, simplifies the language, adds subtitles in several languages and replaces the studio presentation with local pharmacists answering common questions. It publishes a detailed webpage linked from the video and monitors questions rather than relying only on likes and shares. Editors create a correction protocol for inaccurate reposts.

Outcome

In this illustrative case, comprehension improves in follow-up testing, although disagreement remains. The campaign demonstrates that exposure is not equivalent to understanding and that feedback must be interpreted carefully.

Learning Points

• Technical delivery does not guarantee semantic success.
• Credibility depends on social relationships as well as credentials.
• Audience research should occur before, during and after publication.
• Short-form media may require links to fuller explanations.
• Gatekeeping operates through professional and algorithmic selection.

10. Digital Media, Platforms and AI

Digital communication complicates the sender–receiver distinction. A user may create a message, remix another message, distribute it to followers and receive algorithmically filtered feedback. Platforms are not neutral pipes: interface design, ranking systems, moderation policies and commercial incentives shape visibility.

Artificial-intelligence systems increasingly assist with recommendation, translation, transcription, moderation and content generation. These systems can reduce barriers and improve accessibility, but they can also amplify bias, produce inaccurate content, obscure responsibility and create synthetic media that audiences mistake for authentic communication. Media organizations should disclose significant AI use, verify generated material, protect personal data and maintain human accountability for consequential editorial decisions.

Contemporary managers should evaluate not only reach but also credibility, inclusion, comprehension, privacy, correction speed and unintended effects. A high engagement rate may indicate public value, controversy or manipulation; it does not by itself establish communication success.

11. Ethical and Governance Considerations

Communication models have ethical implications because they identify points at which power can be exercised. Sources may conceal interests, media organizations may frame events selectively, platforms may privilege profitable content, and audiences may be targeted through personal data.

Professional practice should follow several principles:

• distinguish fact, interpretation, advertising and opinion;
• provide meaningful context and avoid misleading compression;
• correct significant errors promptly and visibly;
• represent affected groups fairly and avoid discriminatory stereotypes;
• obtain consent where personal information or vulnerable subjects are involved;
• explain moderation, sponsorship and material AI assistance where appropriate; and
• design feedback systems that do not reward harassment or misinformation.

Regulatory requirements differ across jurisdictions, but legal compliance is only a minimum. Ethical communication also requires proportionality, transparency, accountability and respect for audience autonomy.

12. Critical Evaluation of Models

No model captures communication completely. Linear models are clear and efficient for analysing transmission and planned persuasion, but they understate audience agency. Interactional models add feedback and shared experience, but they can still represent communication as alternating turns. Transactional models better represent simultaneity and context, but their breadth can make causal analysis difficult.

Models are therefore analytical tools rather than photographs of reality. The appropriate model depends on the question. To diagnose a broadcast failure, Shannon–Weaver may be useful. To design a persuasive speech, Aristotle may be more useful. To study audience adaptation, Schramm or Berlo may help. To analyse news selection and platform power, Westley–MacLean is more appropriate.

A strong media analyst asks three questions: What does the model make visible? What does it leave out? What practical or ethical decisions follow from using it?

Chapter Summary

Communication is a dynamic process involving encoding, transmission, interpretation, feedback and consequence. Linear models such as Aristotle, Lasswell and Shannon–Weaver clarify source, message, channel, receiver, effect and noise, but they often treat audiences as passive. Schramm and Berlo emphasize shared experience, encoding and decoding, while interactional approaches recognize feedback. Westley–MacLean extends analysis to mass-media systems, gatekeeping and institutional selection. Context shapes meaning, and noise may be technical, semantic, psychological or organizational. Digital platforms make communication more networked and algorithmically mediated, while AI creates new opportunities and risks. Models should be selected critically according to the communication problem being investigated.

Key Terms

Communication: The production, exchange and interpretation of meaning.

Encoding: Converting ideas into symbols or messages.

Decoding: Interpreting symbols or messages.

Message: Symbolic content communicated to others.

Channel: Medium or route through which a message travels.

Source: Originator of a message.

Receiver: Person or group that encounters and interprets a message.

Feedback: Information about reception or response.

Noise: Any factor that disrupts or competes with communication.

Context: Conditions surrounding communication.

Field of experience: Knowledge, culture and experience brought by participants.

Linear model: One-way representation of communication.

Interactional model: Model emphasizing exchange and feedback.

Transactional model: Model viewing communication as simultaneous and co-created.

Gatekeeping: Selection, filtering and framing of information.

Rhetoric: Strategic use of communication for persuasion.

Ethos: Perceived credibility of a communicator.

Pathos: Emotional appeal.

Logos: Reasoned or evidence-based appeal.

Media affordance: Action or interaction enabled or constrained by a medium.

Review Questions

Short Answer Questions

1. What is the main difference between linear and transactional communication models?
2. Define feedback and identify two forms it may take in media organizations.
3. What does Lasswell’s formula ask about communication?
4. Explain the meaning of “field of experience” in Schramm’s model.
5. Give two examples of noise in digital media communication.

Long Answer Questions

1. Compare the Aristotle, Lasswell and Shannon–Weaver models, noting their uses and limitations.
2. Explain how Berlo’s SMCR model can guide the design of a media campaign.
3. Discuss gatekeeping using the Westley–MacLean model.
4. Why does technical transmission not guarantee successful communication?
5. Evaluate the claim that digital audiences are no longer merely receivers.

Analytical / Application Questions

1. Analyse a failed public-information campaign using at least three communication models.
2. Design a feedback strategy for a streaming service launching a new public-affairs programme. Explain which feedback measures you would trust and why.
3. A platform’s algorithm promotes an emotionally controversial news clip while the full report receives little attention. Use gatekeeping, noise and context to analyse the consequences.

Multiple Choice Questions with Answers

Question 1

Which element is explicitly included in Lasswell’s formula?

A. With what effect

B. Encoding machine

C. Field of experience

D. Cultural noise

Correct Answer: A. With what effect

Question 2

What is the central limitation of a strictly linear model?

A. It cannot describe a message

B. It tends to understate feedback and audience agency

C. It assumes all channels are digital

D. It focuses only on cultural context

Correct Answer: B. It tends to understate feedback and audience agency

Question 3

In Schramm’s model, communication is more likely to succeed when participants have

A. identical occupations

B. the same communication channel

C. overlapping fields of experience

D. no prior knowledge

Correct Answer: C. overlapping fields of experience

Question 4

Which is an example of semantic noise?

A. A broken microphone

B. A weak internet connection

C. Ambiguous technical jargon

D. A power outage

Correct Answer: C. Ambiguous technical jargon

Question 5

Gatekeeping refers primarily to the process of

A. measuring signal strength

B. selecting and framing information

C. translating a message literally

D. removing all audience feedback

Correct Answer: B. selecting and framing information

Question 6

Which model is most directly associated with Source, Message, Channel and Receiver?

A. Berlo’s SMCR model

B. Aristotle’s model

C. Lasswell’s formula

D. Westley–MacLean model

Correct Answer: A. Berlo’s SMCR model

Question 7

A television signal arrives clearly, but viewers reject the report as biased. This illustrates that

A. technical transmission guarantees meaning

B. noise is always physical

C. communication includes interpretation beyond transmission

D. feedback is impossible in broadcasting

Correct Answer: C. communication includes interpretation beyond transmission

Question 8

Which rhetorical appeal concerns perceived credibility?

A. Pathos

B. Logos

C. Ethos

D. Chronos

Correct Answer: C. Ethos

Question 9

Which model is especially useful for analysing selection by journalists, editors and platforms?

A. Westley–MacLean

B. Aristotle

C. Shannon–Weaver only

D. Berlo only

Correct Answer: A. Westley–MacLean

Question 10

Why should online engagement metrics be interpreted cautiously?

A. They never measure audience behaviour

B. They may reflect controversy or manipulation rather than understanding

C. They are always based on interviews

D. They exclude all feedback

Correct Answer: B. They may reflect controversy or manipulation rather than understanding