Definition Of Zero Quality Control
Perhaps zero defects refers to the domain beyond 3 4 dpmo.
Definition of zero quality control. Nevertheless the zero defects theory and absolutes of quality management are also frequently criticised. Quality control qc is a process through which a business seeks to ensure that product quality is maintained or improved. Zero defects or zd was a management led program to eliminate defects in industrial production that enjoyed brief popularity in american industry from 1964 to the early 1970s. Box 8 1 definition of qa qc quality control qc is a system of routine technical activities to measure and control the quality of the inventory as it is being.
What zero defects is not zero defects is not a sj edup program. The terms quality control and quality assurance are often used incorrectly. The zero defects concept should pragmatically be viewed as a quest for perfection in order to improve quality in the development or manufacturing process. Zero defects is one of the concepts mentioned in the book absolutes of quality management.
Quality control involves testing of units and determining if they are. This highly regarded and popular concept is also addressed in the six sigma set of techniques. Quality system quality assurance and quality control relationships. The definitions of qc and qa in box 8 1 will be used for the purposes of good practice guidance.
Zero defects is not an employee evaluation tech niqne zero defects is not a technique for censuring error zero defects i not n defect freesubstitute for quality control. According to the six sigma standard the definition of zero defects is defined as 3 4 defects per million opportunities dpmo allowing for a 1 5 sigma process shift. Quality expert philip crosby later incorporated it into his absolutes of quality management and it enjoyed a renaissance in the american automobile industry as a performance goal more than as a program in the 1990s. Or perhaps it refers to designing defects out of the process or product so that theoretically at least a company can consistently manufacture a defect free product.
But the definition for zero defects is not so clear. Quality control definition a system for verifying and maintaining a desired level of quality in an existing product or service by careful planning use of proper equipment continued inspection and corrective action as required.