Bancos de dados geográficos: uma análise das arquiteturas dual (Spring) e integrada (Oracle Spatial). / Spatial databases: an analyse of the architectures dual (Spring) e integrated (Oracle Spatial).

AUTOR(ES)
DATA DE PUBLICAÇÃO

2002

RESUMO

The spatial data complexity justifies the need to develop new spatial data types and to design new structures to store, to query and to handle spatially referenced data inside a database management system (DBMS). This work presents an analysis of these issues considering the different architectures of geographic databases. The Dual and Integrated arquitectures are considered in relation to spatial data and attribute handling. The principal concepts concerning the spatial DBMS are presented. To demonstrate how these concepts are important and influence directly in the efficiency of Geographic Information Systems (GIS) tools, these work concludes with the development of some tests of functionality. Two GIS programs with distinct architectures were tested, and they are: the SPRING, of Dual Architecture, and ORACLE SPATIAL, of Integrated Architecture. The functionality tests aimed to verify if the tools in study support some kind of spatial queries, describing the necessary steps to perform these queries. In order to perform the tests, an Urban Planning application was chosen and some spatial queries were defined and executed.

ASSUNTO(S)

geographic information systems spatial databases spatial databases architectures arquiteturas de bancos de dados geográficos geoprocessamento sistemas de informação geográfica

ACESSO AO ARTIGO

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