Fundamentals of Business Laws and Business Communication · Process of Communication

Types and Channels of Communication for CMA Foundation

Updated 10 October 2026 · Fact-checked

Communication is classified by style (formal or informal), by mode (verbal or non-verbal) and by direction of flow (downward, upward, horizontal, grapevine). To answer MCQs, identify who is talking to whom, whether the official structure is followed, and whether words or signals carry the message. Then match the type.

Understand Types and Channels of Communication

Communication means passing information from one person to another so that it is understood. Inside a business, messages move in many ways. Types help you describe how a message moves. Channels are the routes it follows.

First, look at the style. Formal communication follows the official structure of the organisation. It uses recognised channels such as memos, circulars, reports and official emails. It is usually recorded and carries authority. Informal communication does not follow the official structure. It arises from personal relationships, such as a chat in the canteen. It is fast and flexible, but it is not official and is rarely recorded.

Second, look at the mode. Verbal communication uses words, either spoken (oral) or written. A phone call and a letter are both verbal. Non-verbal communication passes meaning without words: facial expressions, gestures, posture, eye contact, dress and silence. Tone of voice is usually called paralanguage. It is a vocal cue that accompanies spoken words, so it is not a purely wordless signal.

Third, look at the direction of flow in formal communication. Downward flows from superiors to subordinates, for example a manager giving instructions or a circular on new rules. Upward flows from subordinates to superiors, for example a progress report, a complaint or a suggestion. Horizontal (lateral) flows between people at the same level, for example the sales head coordinating with the production head. Diagonal flows between people at different levels in different departments.

The grapevine is the informal network through which rumours and gossip spread. It has no fixed path. It spreads fast, often distorts facts, and cannot be fully stopped. Managers can use it to sense employee feelings. Common grapevine patterns are the single strand, gossip, probability and cluster chains. In the cluster chain, one person tells a few selected people, who each pass it to a few others. The cluster chain is often cited as the most common pattern.

Key formulas to remember

Formal communication: Formal = official structure + recognised channel + usually recorded; Examples: memo, circular, report, official email.
Informal communication: Informal = personal relationships + no official structure + rarely recorded; Grapevine is the main example.
Verbal vs non-verbal: Verbal = words (oral or written); Non-verbal = signals without words; Written words are verbal, not non-verbal.
Direction of flow: Downward: superior → subordinate; Upward: subordinate → superior; Horizontal: same level; Diagonal: different level and department; Decide by the rank of sender and receiver.
Grapevine chains: Single strand, gossip, probability, cluster; Cluster chain is often cited as the most common pattern.

How to solve Types and Channels of Communication questions

Use this method for any MCQ on types and channels of communication.

1Read the situation and note who the sender and receiver are.
2Check whether the official structure is followed. If yes, it is formal. If it rests on personal links, it is informal.
3Check the mode. If words are used, spoken or written, it is verbal. If only gestures, looks, posture or silence carry the message, it is non-verbal.
4Compare the ranks. Higher to lower is downward, lower to higher is upward, same level is horizontal, cross-level and cross-department is diagonal.
5If the message is a rumour or gossip with no fixed path, it is the grapevine.
6Eliminate options that mix up features, such as calling a written memo non-verbal.
7Pick the option that matches every detail in the question.

Quickest way: Two-question filter

When to use it: Use when you have under 40 seconds per MCQ and the options look similar.

Ask: Is it official? Official means formal. Unofficial means informal or grapevine.
Ask: Who is above whom? That gives downward, upward, horizontal or diagonal.
Treat any written or spoken word as verbal.
Match key words: instruction or circular means downward; report or complaint means upward; coordination between peers means horizontal; rumour means grapevine.

Common mistakes in Types and Channels of Communication

Calling written communication non-verbal.
Students think verbal means spoken only.
Fix: Remember verbal means words. Both oral and written messages are verbal.
Treating grapevine as formal communication.
It is common in offices and seems normal.
Fix: Grapevine has no official channel, so it is always informal.
Mixing up upward and downward flow.
Students look at the topic of the message, not the sender's rank.
Fix: Find the sender's position first. A report to the manager is upward.
Calling communication between two managers of different departments horizontal.
Both are managers, so students assume equal level.
Fix: Horizontal means same level. If ranks differ and departments differ, it is diagonal.
Saying informal communication is always harmful or false.
Students link informal with rumour.
Fix: Informal communication can be useful and fast. It is only unofficial and unrecorded.

Worked examples

Example 1

The production manager of a Pune firm sends a written circular to all workers announcing new safety rules. Which type of communication is this?

A. Upward, informal
B. Downward, formal
C. Horizontal, non-verbal
D. Grapevine, verbal

Show the solution

The circular is official, so it is formal.
The sender is a manager and the receivers are workers, so it flows from higher to lower: downward.
It is written, so it is verbal, not non-verbal.
It follows an official channel, so it is not grapevine.
Only option B matches.

Answer: B. Downward, formal

Example 2

In a Chennai company, employees hear a rumour in the canteen that bonuses will be cut. Nobody knows who started it, and it spreads quickly. This is best described as:

A. Formal upward communication
B. Horizontal formal communication
C. Grapevine communication
D. Downward written communication

Show the solution

The message is a rumour with no known source.
It spreads through personal contacts in the canteen, not official channels, so it is informal.
An informal network that carries rumours and gossip is the grapevine.
Options A, B and D describe official or written flows, so they do not fit.

Answer: C. Grapevine communication

Exam tips

Most questions give a short situation. Decide the type from the sender, receiver and channel, not from the topic of the message.
Watch for the word 'written' to catch verbal versus non-verbal traps.
Learn one example for each type, such as memo for downward and progress report for upward.
Remember grapevine features: fast, informal, no fixed path, can distort facts.
There is no negative marking, so attempt every question after eliminating wrong options.

Practice questions from Process of Communication

Types and Channels of Communication in other exams

The same ground in other exams, if you are preparing for more than one or want another angle on it.

CSEETTypes and Channels of Communication

Types and Channels of Communication: frequently asked questions

What is the difference between formal and informal communication?

Formal communication follows the official structure and uses recognised channels such as memos and reports. Informal communication arises from personal relationships and does not follow the official structure. Formal messages are usually recorded, while informal ones rarely are.

What are examples of downward, upward and horizontal communication?

Downward: a manager giving instructions or issuing a circular. Upward: an employee submitting a progress report or complaint. Horizontal: the finance head coordinating with the marketing head at the same level.

What is grapevine communication?

Grapevine is the informal network through which rumours and gossip spread among employees. It has no fixed path and spreads quickly. Its common patterns are single strand, gossip, probability and cluster chains.

Is written communication verbal or non-verbal?

It is verbal. Verbal communication uses words, whether spoken or written. Non-verbal communication uses signals such as gestures, facial expressions, posture, eye contact and silence. Tone of voice is usually treated as paralanguage, a vocal cue that goes with spoken words.