1Mandalbaum, M. Flexibility in decision making : an exploration and unification [dissertation] [M] . Canada: Department of Engineering, University of Toronto, ]978.
2Slack, N. The flexibility of manufacturing systems[J].Internatioal Journal of Production and Operations Management ,1987,4(7) .35-45.
3Gerwin, D. Manufacturing flexibility: a strategic perspective[J].Management Science,1993,39 (4): 395-410.
4Shannon, C. E., Weaver, W. The Mathematical Theory of Communication[M]. Urbana: University of Illinois Press, ]949..
5Jaynes, E.T. Information Theory and Statistical Mechanics[J].Physical Eeview, 1957, 106:361-630.
6Hector Sabelli. BIOS: A Study of Creation[M]. Singapore: World Scientific Publishing Company, 2005. P437-470.
7A project for S. P. Richards Company[EB/OL]. http://www.tii. gatech.edu/whscience/projects/spr 3/main. html.