5Peter Mell, Timothy Grance. The NIST Definition of Cloud Computing[EB/OL]. http://csrc.nist.gov/publications/nistpubs/ 800-145/SP800-145.pdf, 2012-08-10.
6WEINBERG G M.The psychology of computer programming [M] .[S.I.]:Van Nostrand Keinhold Company, 1971:11 I- I 15.
7Thomas H Davenport, Laurence Prusak.Information Ecology: Mastering the information and Knowledge Environment[M]. London: Oxford University Press, 1997:89-92.