W u Jianqiang, Yu Jun, Yu Q in. Design and practice o f geo-env ironment inform ation system in Suzhou-W ux i-Changzhou a rea [ J] . Geo logy and Prospec ting, 2002, 38( 8): 66- 69. ( in Ch inese)
Da i Fuchu, Zhang X iaohu,i L i Jun, et a.l A GIS-a ided geo-env ironm ental assessm ent in urban plann ing [ J]. Journa l o f Eng i- neering Geo logy, 2000, 8( 4): 426- 432. ( in Ch inese)
Du Juan, Guan Zequn. Arch itecture and key techno log ies of spa tia l inform a tion gr id [ J]. Geospatial Inform ation, 2005, 3( 2): 27- 29. ( in Chinese)
Chen X in, L- Guonian. Study on the approach o f building da ta objects for enterprise G IS based on three-tiered ach itecture [ J] . Geo-Inform ation Science, 2001( 2): 48- 52. ( in Chinese)
Jiang Tainchao, Xu S ix in. The database applica tion and im plem entation based on three-tiered c lien t/serve r architec ture [ J]. M icro computer Deve lopm ent, 2002( 6): 25- 27. ( in Chinese)
[13]
[ 王勇领. 系统分析与设计[M ]. 北京: 清华大学出版社, 1991.
[14]
W ang Yong ling. System Ana lys is and Design [M ]. Be ijing: TsinghuaUn iversity Press, 1991. ( in Chinese)
Lan Jingy ing, L iu D.i The app lication research w ith three-layer structure based on COM + /DCOM [ J]. Journal o f Yunnan Na tiona lities Un iversity: Na tura l Sc ience Ed ition, 2005, 14( 1): 83- 85. ( in Chinese)
