Towards integrated geographical information processing

doi:10.1080/136588198241833

Towards integrated geographical information processing

1998-06-01

28

PRE

AI

DOI：10.1080/136588198241833

原文链接

原文求助

摘要

En 中文

Many geographical applications access data from multiple disparate repositories such as file systems, Geographical Information Systems and database management systems which contain data able to be interrelated. Existing approaches that either built a single repository that contain all the required data or simply interconnect these repositories have not been well received. In this paper, we present the design of the Virtual GIS, a system for distributed spatial data processing in heterogeneous environments. The Virtual GIS is an integrated system that provides all the essential facilities for integrating and retrieving data from multiple component systems. The system is particularly aimed at extensibility and scalability through distributing the processing load across the component systems and a global frontend. The object-oriented data model is adopted as a common data model to ensure meaningful data sharing. We also employ the five-level schema architecture of Sheth and Larson as the framework for system integration. Finally, queries are processed using a five-phase query processing approach.

Keyword:

DATABASE

Towards integrated geographical information processing

摘要

AI总结

期刊

机构

引用论文