What is quality?

Deduktiv. Deductive. Latin deductivus, deductio. To base on, to continue. Deduction, or the deductive method, is defined in philosophy as arriving at specific conclusions based on assumptions or principles.

The Greek philosopher Aristotle defined deduction as „conclusions about the specific based on the general.“ Induction, or inductive thinking, is the opposite: arriving at general principles based on the observation of particulars.

Normen. Norms. Latin norma, the measurement of an angle; generally excepted rules of interaction among people; standards for size, weight, quality; the average value of something; minimum values of a thing or behaviour.

Qualität ist die Einhaltung von Normen. Quality is meeting all necessary norms. The response of a German engineer to the question „What is quality?“