One need not be eminent in any part of profound knowledge in order to understand it and to apply it. The various segments of the system of profound knowledge cannot be separated. They interact with each other. For example knowledge about psychology is incomplete without knowledge of variation.
W. Edwards DemingThe ultimate purpose of collecting the data is to provide a basis for action or a recommendation.
W. Edwards DemingSub-optimization is when everyone is for himself. Optimization is when everyone is working to help the company.
W. Edwards Deming