%0 Journal Article
%T GIS Data Model and Its Architecture<br>地理信息系统的数据模型与系统结构
%A Huang Bo
%A <br>黄波
%J 遥感学报
%D 1995
%I 
%X Data model is a representation of data and its relation. It is consi-dered very important in database design. In constrast to alphanumerical data, spati- al data is characterised by its large magnitude and complexity.Therefore,it is ofsignificance to do research on spatial data model.Most commericial GISes are basedon relational data model.However,its drawbacks on representing spatial entitiesand their interrelations have led to the separation of graphic database and attributedatabase. In order to overcome this problem,extended relational data model andobject-oriented data model are explored.This paper introduces these three data mo-dels and their corresponding GIS architecture,analyses their pros and cons, and pre- sents the relation between spatial data model and GIS architecture.
%K GIS
%K Data model
%K Architecture<br>地理信息系统，数据模型，系统结构
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=E62459D214FD64A3C8082E4ED1ABABED5711027BBBDDD35B&cid=A41A70F4AB56AB1B&jid=F926358B31AC94511E4382C083F7683C&aid=10C7A193263B634B7390D20FD219DB36&yid=BBCD5003575B2B5F&iid=CA4FD0336C81A37A&journal_id=1007-4619&journal_name=遥感学报&referenced_num=0&reference_num=0