R.M. Pirsig, Zen and the Art of Motorcycle Maintenance. L. Abbott, Quality and Competition. C.D. Edwards, Quality Progress , October, 1968.
Quality is the degree to which a specific product satisfies the wants of a specific customer.
H.L. Gilmore, Quality Progress , June, 1974. American Economic Review , Dortman and Steiner, 1962. In the final analysis of the marketplace, the quality of a product depends on how well it fits patterns of customer preference. Kuehn and Day, Harvard Business Review , 1962. Quality is fitness for use.