Noise is disturbance that alters a transmitted signal relative to the intended signal. In this technical sense, it concerns signal corruption. Applying the term to ambiguity, distraction, prejudice or disagreement is an analogy, not evidence that these are equivalent processes.
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Key concept
Key concepts are the working vocabulary of the field: the terms that the models and tools rely on and that a decision about communication has to use precisely. Each entry defines the term and sends you to the brief or the self-guided audit where it is put to work.