AUnified APPROACH FOR SPATIAL DATA QUERY

Research Abstract

With the rapid development in Geographic Information Systems (GISs) and their applications, more and more geo-graphical databases have been developed by different vendors. However, data integration and accessing is still a big problem for the development of GIS applications as no interoperability exists among different spatial databases. In this paper we propose a unified approach for spatial data query. The paper describes a framework for integrating information from repositories containing different vector data sets formats and repositories containing raster datasets. The presented approach converts different vector data formats into a single unified format (File Geo-Database “GDB”). In addition, we employ “metadata” to support a wide range of users’ queries to retrieve relevant geographic information from heterogeneous and distributed repositories. Such employment enhances both query processing and performance.

Research Keywords

AUnified APPROACH FOR SPATIAL DATA QUERY