Glossary Updates43 new terms added to the glossaries · October 5, 2026, 20:06 CEST
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The art of thinking · Parts, wholes and systems

Cybernetics

Also known as: Control and communication in the animal and the machine

German: Kybernetik

Cybernetics is the science of control and communication in animals, machines and organizations — how systems use feedback to pursue goals and stay stable — named and founded as a field by the mathematician Norbert Wiener in 1948.

  • Thinking models
  • Systems theory
  • Engineering

In one sentence

Cybernetics, named by Norbert Wiener in 1948, studies control and communication through feedback in machines, organisms and organizations.

Example

A documentation process with a feedback loop — field reports reviewed monthly, corrections tracked to the next release — is cybernetic: it measures its output and corrects itself. Without the loop, errors accumulate unnoticed.

How it applies

  • Name and origin: Wiener took the word from Greek kybernētēs, steersman. The field grew from wartime work on anti-aircraft fire control and from the interdisciplinary Macy conferences, with Warren McCulloch, John von Neumann, Margaret Mead, Gregory Bateson and others.
  • Core ideas: Negative feedback (deviations from a goal are measured and corrected), information as a measurable quantity, and the analogy between control in organisms and in machines. W. Ross Ashby’s An Introduction to Cybernetics (1956) gave it a general formulation, including the law of requisite variety.
  • Second-order cybernetics: From the late 1960s Heinz von Foerster and others included the observer in the system — cybernetics of observing systems.
  • Technical documentation: Feedback is not only a control engineering concept. Documentation processes, review loops and change management are control loops; asking what is measured, against which goal, and who corrects is a cybernetic question.

Cybernetics vs. control engineering

Feedback in control engineering is the technical mechanism; cybernetics is the general theory that treats the same principle in organisms, organizations and communication.

How to read this pool

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By knowledge.aitechdoc.world · Published October 5, 2026 · Last reviewed

Source: Norbert Wiener, Cybernetics: Or Control and Communication in the Animal and the Machine (1948), MIT Press

Definitions follow the cited philosophical and historical sources — primary texts, their standard translations and reference works such as the Stanford Encyclopedia of Philosophy — and, for cognitive psychology, the published research and its reviews, with the state of the evidence named in each entry. They are paraphrased, not quoted, unless a passage is marked as a quotation, and sayings that cannot be traced to a source stay attributed. Examples, comparisons and the notes on how a method was adapted are editorial commentary by knowledge.aitechdoc.world. None of these entries is a norm, a standard or a legal requirement, and applying one never replaces a method that a standard or a law requires.

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