%0 Journal Article
%T Modern IT and 4~( th) GIS software<br>现代IT与第四代GIS软件
%A FANG Yu
%A TIAN Guo-liang
%A SHI Zhong-zhi
%A ZHOU Cheng-hu
%A <br>方裕
%A 田国良
%J 中国图象图形学报
%D 2001
%I 
%X In this paper,some modern computer software techniques are introduced. However, those techniques can not be put into practice of GIS software design. Especially, spatial data distributed computation, combining query and operation of both spatial and attribute data are focused on. In this paper. The weaknesses of GIS implementation technique, like the spatial data modeling and storing, the completed framework of spatial relationship and declaration, the relationship presentation between the spatial data and the attributes are pointed out. Also, the technical directions to solve those problems are presented. The layer-based spatial data storing and operation model has to be changed. The synchronization mechanism of spatial data operation has to be established. The UNIX semantics of spatial data modification has to be implemented. The GSQL has to be researched so that the ability of spatial data administration can be increased. etc.
%K RPC
%K Synchronization
%K Spatial data
%K Spatial relationship
%K Distributed computing
%K SQL
%K Spatial data mining
%K Data warehouse<br>RPC
%K 空间数据
%K 空间关系
%K 分布式计算
%K SQL
%K 空间数据挖掘
%K 数据仓库
%K 地理信息系统
%K IT
%K GIS
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=8240383F08CE46C8B05036380D75B607&jid=D06194629680C940ACE75262F54B9D85&aid=BC2E0E62310BBC92&yid=14E7EF987E4155E6&vid=B31275AF3241DB2D&iid=9CF7A0430CBB2DFD&sid=8A03DD854A27B60D&eid=C81F81170838C444&journal_id=1006-8961&journal_name=中国图象图形学报&referenced_num=8&reference_num=11