The principles and methods for improvement are the same for service as for manufacturing. The actual application differs, of course, from one product to another, and from one type of service to another.
W. Edwards DemingThe only useful function of a statistician is to make predictions, and thus to provide a basis for action.
W. Edwards DemingForemost is the principle that the purpose of consumer research is to understand the customer's needs and wishes, and thus design product and service that will provide better living for him in the future. A second principle is that no one can guess the future loss of business from a dissatisfied customer.
W. Edwards Deming