Estudo de tecnologias para desenvolvimento de sistemas de informação geográfica em ambiente web

Abstract

This work show the result of researches related to important concepts needed to the understating of the Geographic Information Systems (GIS) structure. Exposes Geoprocessing useful concepts, acquisition forms and the main representation of geographic information types nested into specified patterns for the best spatial data treatment. Approaches the main spatial extended database systems used for data storing, describing its characteristics and listing its main functionalities for data manipulation. Presents the two main map servers, the Geoserver and the Mapserver, which represent pre-organized data repositories with layer stylization for visualization, being base for applications and map visualization technologies. Describes the functionalities, characteristics and components of OpenLayers libraries and its integration with others libraries called WebGIS. Lastly, presents the OpenLayers framework for JSF as integration option between the OpenLayers and JavaServer Faces technologies, highlighting the advantages and presenting its utilization trough examples. Brings as result a demonstrative application implementation which offers resources for geometries creation trough the previously approached technologies and Google Maps integration well as descriptive data acquisition related to the created geometry.