4Li Bin, Zhang Li. Distributed Spatial Catalog Service on the CORBA Object Bus[ J]. Geolnformatica,2000,4( 3 ) :253-269.
5Wang Fang-ju. A Distributed Geographic Information System on the Common Object Request Broker Architecture ( CORBA ) [ J ]. GeoInformatica,2000,1 (4) :89-115.
6Ivar Jacobin Grady Booch James Rumbaugh著 周伯生等译.统一软件开发过程[M].北京:机械工业出版社,2002-01..
7Grady Booch et a1 邵维忠 等.UML用户指南[M].北京:机械工业出版社,2001..