In Japan quality control (quality control = QC) or quality assurance (QA = quality assurance) is defined as the development, design, fabrication, and servicing of products that will satisfy the needs of consumers at the Lowest possible cost. Quality control starts with an independent examiner and methods of statistical demonstration soon turned to the method of “self-examination on all units” based on autonomous control against defects in fabrication process itself. Now in Japan, the number of surveillance is less than five percent of the employees of the factory and almost ten percent of all employees of the factory was the supervisor. In Japan, oversight by a special watchdog has been reduced to as little as possible for Several reasons: Trustees Whose activities are outside the fabrication process of conducting operations without value added. In addition, feedback from supervisors on the fabrication process usually takes a lot of time so that parts or defective products continue to
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