When to use it

A useful fit

Use it to diagnose repeated misunderstandings, choose a channel or prepare a high-consequence instruction.

Know the limits

Do not treat communication as a one-way transfer where the sender alone can guarantee understanding.

How to use it

  1. State the action or decision the message should support.
  2. Choose language, context and a channel appropriate to the recipient.
  3. Ask the recipient to explain the next action in their own words and resolve mismatches.

Worked example

A deployment lead writes “ready for release” and operations interprets that as permission to launch. The team replaces it with separate technical-readiness and launch-authorisation messages, then confirms who acts on each.

Illustrative scenario by fannarmaximus; not an official exam question.

Common pitfalls

A delivered message or read receipt proves transmission, not understanding.

Attribution & sources

Claude Shannon and Warren Weaver’s communication work and Wilbur Schramm’s human-communication work are credited by the series. This example does not reproduce their figures.

The citations below identify authoritative references for this topic. They do not imply endorsement or reproduce the bodies’ competence lists.

  • Shannon, C. E. & Weaver, W. (1949). The Mathematical Theory of Communication. Urbana: University of Illinois Press. LCCN 49011922.
  • Schramm, W. (1954). How communication works. In W. Schramm (ed.), The Process and Effects of Mass Communication (pp. 3–26). Urbana: University of Illinois Press.

Learn and apply

Explore communication: guides, calculations and sources