THEORETICAL RESEARCH FRAMEWORK OF GEOGRAPHICAL INFORMATION
SHARING
Guomin Song
4 Department,Institute of Surveying and Mapping, Information
Engineering University,Zhengzhou, china
songgm@tom.com
Theoretical Research Framework of
Geographical Information Sharing
SONG Guo-min
(Institute
of Surveying and Mapping, Information Engineering University, Zhengzhou 450052, P.R.China)
E-mail: songgm@tom.com, sonny_chn@sina.com
For Spatial Data Infrastructures (NSDI, GSDI and SDI).
Development, Standards.
Abstract:
This
paper explains the conception of geographical information sharing at first,
then argues that the human’s cognitive process of nature is a process
continuously deepened and abstracted, which varied from realistic space to conceptual
space then to geographic descriptive space. Based on this viewpoint, the author
establishes the hierarchical framework of theoretical research to geographical
information sharing.
Within
this framework, spatial cognition theory and information communication theory are
the bottommost, here spatial cognition studies the basic process and method of
human understanding geographic space; and the result of cognition can be inherited
and fed back through information communication course, so information communication
links the three space mentioned above.
Geographical
spatial conception is in midst of this framework. It tries to find the connotation,
similarities and differences of different spatial concepts, and construct a
most applicable spatial concept to geographical information sharing.
The
study of spatial cognition theory, information communication theory and geographical
spatial conception can settle the semantic sharing of geographical information.
Geographical
data model and standardization of geographical information are the topsides.
They are limited by the two layers above, but the study of them can guide
directly the technology achieve strategy of geographical information sharing.
Finally,
the author expounds each theory in detail, and presents some new opinion for
each theory.
Key Words: Geographical Information Sharing;Spatial Cognition
Theory;Information Communication Theory;Geographical Spatial Conception;Geographical Data Model;Standardization of
Geographical Information