ABSTRACT
The essential steps of a system for effective control of product quality have often presented in logical succession, from review of product specifications to process flow charts, descriptions, and specifications; quality audits and quality history development. The stage has thus been set for a crucial further step: the installation of major feedback operations of the system. For this purpose, accumulated inspection and test results are used to evaluate quality attainments in relation to places in processing and particular features of designs where revisions, modifications, and adjustments are likely to bring about improvements. Fewer quality problems, enhanced productivity, and lowered costs are the attainments that should ensue from this activity. The importance of quality feedback and its multiple profitable applications make it necessary to cover this material in two chapters. Basic procedures are presented here, while additional techniques are provided in Chapter 12.
