To formulate a model that can evaluate the effectiveness of information system safety measurements,the relativity between safety measures counting certain risks(1∶n or m∶1) was studied.Supposing that the effectiveness of different safety measures has abstract function relation,the function was extended into power series by normalization,introduced all possible mathematical relativity,and eliminated redundant relativity by F-statistic and Gram-Schmidt orthography algorithm.By regression analysis,we get the high precision evaluation model than the line evalution model.

As China's entering into WTO,financial market will be open for foreign investment gradually,which means that the competition between Chinese commercial banks and foreign-owned banks has become more and more fierce.This paper aims to compare Chinese commercial banks and foreign-owned banks in the following aspects:operation environments,operation security,quantity and quality of bank assets and banking transactions.It finds out the disedvanteges of Chinese commercial banks and propose the corresponding measures.