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Research and application of Concurrent Engineering have produced good results. A Chine se style concurrent engineering architecture and reference mode has been produced. A series of break thoughts in BPR (Business Process Reengineering) have been made with organization of the IPT (Integrated Product Development Team) and engineering support technologies. Several prototype tools were developed, including product development process modeling and management, QFD-based schema design and decision making, PDM-based concurrent design, STEP-based CAD/CAPP/CAM integration, design for assembly, design for manufacturing, computer aided fixture design, and machining process simulation. Finally, the research results were used in the devlopment of two complex components in an aerospace application, and satisfactory results were obtained.