4Armbrust M, Fox A, Griffith R, et al. Above the clouds: A Berkeley view of cloud computing[R]. EECS Department, University of California, Berkeley, 2009.
5Li D Y, Lin R H. Cloud computing technology development report[R]. Beijing: Science Press, 2011.
6Lin M, Chang M, Chen D. Distributed-program reliability analysis: Complexity and fficient algorithms[J]. IEEE Transactions on Reliability, 1999, 48(1): 87-95.
7Staaty T L. The analytic hierarchy process[M]. New York: McGraw, 1980.
8Yu B, Wang F M, Sun H C. Systems engineering theories[M]. Hefei: University of Science and Technology of China Press, 2009.
9Wang P Z. Fuzzy sets and random colony[M].Beijing: Beijing Normal University Press, 1985.
10Xu J P, Wu W. Multiple attribute decision making theory and methods[M]. Beijing: Tsinghua University Press, 2006: 124-125.
