2.4 Internal and External Communication

2026 Syllabus Objectives

By the end of this topic, you should be able to:

2.4.1 — Why effective communication is important and the methods used to achieve it:

  1. Explain what effective communication is and why it matters to a business
  2. Describe the benefits and limitations of different communication methods, including IT-based ones
  3. Recommend and justify which communication method to use in a given situation

2.4.2 — Demonstrate an awareness of communication barriers:

  1. Explain how communication barriers arise, the problems they cause, and how they can be reduced or removed

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1. What Is Communication?

Communication is the transfer of a message from a sender to a receiver, where the receiver understands and can act on the message.

There are four key parts to every act of communication:

  • Sender (transmitter) — the person who starts the process by creating and sending the message
  • Medium — the method used to send the message (e.g. email, phone call, letter)
  • Receiver — the person who receives and reads/hears the message
  • Feedback — the reply from the receiver, showing whether the message was received, understood, and acted upon

Think of it like this: a manager (sender) sends an email (medium) to an employee (receiver), and the employee replies to confirm they understood (feedback).

One-Way vs Two-Way Communication

  • One-way communication is when a message is sent but no response is expected. For example, a sign on a door that says "Keep this door locked at all times." The receiver cannot reply or give feedback.
  • Two-way communication is when the receiver responds and there is a discussion or at least a confirmation. For example, a manager asks a worker a question and the worker answers back.

Two-way communication is generally better because:

  • The sender can check whether the message was understood
  • Both people are involved, which can increase motivation and contribution

2. Why Effective Communication Is Important

Effective communication means the message is received, understood, and acted upon as intended. If communication fails, it can cause serious problems for a business.

Benefits of effective communication:

  • Helps managers and employees avoid mistakes
  • Makes sure everyone knows their role and what is expected of them
  • Keeps the business's goals and values clear to all staff
  • Gives customers the information they need about products and services
  • Helps the business run more efficiently and take advantage of new opportunities
  • Reduces costs caused by errors or misunderstandings

Consequences of poor communication:

  • Workers may carry out tasks incorrectly
  • Suppliers may send the wrong materials if given inaccurate instructions
  • Customers may buy from a competitor if they receive wrong or confusing information
  • Employees may feel demotivated if they do not know what is happening in the business
  • Delays and extra costs may occur

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