Defect prevention

There are three phases in the evolution of most QC systems (1) defect detection where an army of inspectors tries to identify defects (2) defect prevention where the process is monitored, and statistical methods are used to control process variation, enabling adjust-... 

The management believes in the effectiveness of a quality assurance system based on complying with the provisions of ISO 9003 and our principle of continual progress through defect prevention and improvement. This system is managed by our quality assurance department, whose role is to implement and maintain a structure and control its evolution in order to ... 

Quality control (QC), as defined by Webster s Dictionary, is an aggregate of activities (as design analysis and inspection for defects) designed to ensure adequate quality (Merriam-Webster, 2003). Quality control improves product or service design to improve the level of quality it can be thought of as defect prevention. 

Once identified, are common causes of defects prioritized and systematically eliminated Is training given in defect prevention ... 

Are defect prevention activities subject to quality review and audit ... 

As reviewed above, sub-GBs are concluded to be most serious defects preventing the improvement of overall performance of solar cells based on Si multicrystals. We, therefore, suppress the generation of sub-GBs on the basis of fundamental knowledge of its mechanism. In the next section, the generation mechanism of sub-GBs is discussed. 

Berry RJ, Li Z, Erickson JD, Li S, Moore CA, Wang H et al. Prevention of neural-tube defects with folic acid in China. China-U.S. Collaborative Project for Neural Tube Defect Prevention [corrected erratum to be published]. N Engl J Med 1999 341 1485-90. 

The first part of this chapter therefore concentrates on the QC function and the statistical appreciation required to progress a QC operation successfully. QA, which aims at building-in quality and defect prevention (rather than defect detection), although involving statistics to obtain data (e.g. statistical process control), relies more on regimented procedures and documentation to keep validated processes under control. 

Primary Process Control Secondary Process Control Auxiliary Process Control Variation Reduction Error and Defect Prevention... 

QS 9000—Quality management system requirements cooperatively developed and adopted by the Big Three automobile manufacturers, Chrysler, Ford, and General Motors, along with certain truck manufacturers. QS-9000 incorporates all of the main elements of the ISO 9001 standard and describes the minimum quality system requirements to emphasize continuous improvements, defect prevention, consistency, and elimination of waste. 

Pacing leads can be subdivided into a number of groups based on the area of placement and method of stimolation. Leads can be placed either on the epicardium (external surface) of the heart or, by a transvenous route, onto the endocardium (internal surface) of the right heart atrium or ventricle. Epicardial leads are used for permanent pacing in pediatric cases, where size considerations or congmtal defects prevent transvenous placement, and in patients who have undergone tricuspid valve rqilacement (Mitrani et al., 1999). Transvenous placement of the lead is the preferred route in most patients. 

Chrysler requires that its suppliers be certified to the automobile industry s quality standard, called QS-9000. That standard, generated by a team of auto OEMs, accreditation bodies, and suppliers, defines internal quality processes that suppliers must use. An independent registrar must certify compliance with these processes. They cover continuous improvement, defect prevention, and reduction in variation. QS-9000 provides a foundation of basic requirements for any supplier wanting to serve any of the major automobile companies. 

Schmidt RJ, Romitti PA, Bums TL, Murray JC, Browne ML, Dmschel CM, Olney RS National Birth Defects Prevention Study. Caffeine, selected metabolic gene variants, and risk for neural tube defects. Birth Defects Res A Clin Mol Teratol 2010 88 560-9. 

He continues his discussion by stating that the first step is to examine and adopt the attitude of defect prevention (incidents). This attitude is called, symbolically [1], Zero Defects (incidents). Zero Defects is a standard for management, a standard that management can convey to the employees to help them to decide to do the job right the first time (no injuries due to incidents). However, some people still think that you cannot reduce incidents [1]. 

Historical data are valuable for creating a product-focused failiue taxonomy. Defect prevention measures could be applied in the maintenance phase of this project. 

McDonald M, Musson R, Smith R (2008) The practical guide to defect prevention - techniques to meet the demand for more reliable software. Microsoft Press Milius S, Steinke U (2010) Modellbasierte softwareentwicklung mit SCADE in der eisen-bahnautomatisierung. http //www.iti.cs.tu-bs.de/ milius/research/modelbased.pdf Accessed 24 August 2010... 

Collier SA, Browne ML, Rasmussen SA, Honein MA. the National Birth Defects Prevention Study. Maternal caffeine intake during pregnancy and orofacial clefts. Birth Defects Res (part A) 2009 85 842-9. 

Ahrens KA, Anderka MT, Feldkamp ML, Canfield MA, Mitchell AA, Werler MM. National birth defects prevention study. Antiherpetic medication use and the risk of gastroschisis findings from the national birth defects prevention study, 1997-2007. Paediatr Perinat Epidemiol 2013 27(4) 340-5. 

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