To assure customer satisfaction, the aerospace design organization must establish its own quality management system to demonstrate that its capabilities to produce, and continually improve, safe, reliable products meet or exceed customer. At the same time, the design organization must establish the design assurance system for obtaining the design organization approval (DOA). Both of these documented systems should be prepared for new design organizations, such as Commercial Aircraft Corporation

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... of China, Ltd. (COMAC). After presenting these two systems in detail, the relationship between them are analyzed and concluded. This article suggests that the new design organization could optimizer their own structure for making some saving costs during requesting the certifications of DOA and AS9100.