英文摘要 |
Data standards and dictionary are substantial components in the National Geographical Information Systems. However, there are various ways of implementations about data standards and dictionaries. Still, versions are improving. This article introduces a systematic way to design the data standards and dictionary by illustrating the case of the 'Regional and Urban Planning Data Bases' in the National Geographical Information Systems. Furthermore, two applications are introduced. One is an information systems which implements the concepts of data dictionary is introduced. The other one is an on-line map query system based on the environment of World Wide Web. |