Signal to noise ratio

Signal to Noise Ratio / Bottom Lining

A Few weeks ago while attending a Coaching Agile Teams class I heard one of the instructors (Lyssa Adkins) make a reference in passing to “signal to noise” ratio in reference to our ability to communicate with others.  Her comment intrigued me because I’d never heard that phrase before, so I started to do some investigation.

Signal-to-noise ratio (abbreviated SNR or S/N) is a measure used in science and engineering that compares the level of a desired signal to the level of background noise.

Signal-to-noise ratio is sometimes used informally to refer to the ratio of useful  information to false or irrelevant information in a conversation or exchange. For example, in online communities, off-topic posts and spam are regarded as “noise” that interferes with the “signal” of appropriate discussion.