Abstract:Change control is considered as the prime power and obstruction of growth. During product research and development, it is di±cult to avoid various engineering changes (ECs). Appropriate control of ECs can improve the design and quality of products. This study examines aerospace products from development to production over 17 years including 1180 cases of EC. We use statistical methods to analyze the central and dispersion tendency of the products research and development and then test it to¯nd which key capabi… Show more
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