From the system science viewpoint, the four levels of meta syntheses, including methodology, theory, technology and application, were discussed. Its theoretical and practical significances also were illuminated.
于景元, 周晓纪. 从综合集成思想到综合集成实践——方法、理论、技术、工程[J]. J4, 2005, 2(1): 4-.
YU Jing-Yuan, ZHOU Xiao-Ji. Meta Syntheses: From the Thought to Its Practice——The Methodology, Theory, Technology and Engin. J4, 2005, 2(1): 4-.