A Geographical Information System Based on the Scalable Vector Graphics Standard

This paper presents two versions of Geographical Information Analysis System - GIAS, GIAS 1.0 and GIAS Web, developed for analysis of geographical information andapplied to specific regions in the State of Rio Grande do Norte, Brazil. GIAS 1.0 is a stand-alone system developed using conventional graphical rendering techniques for local application. We describe its internal structure, including the database, mechanisms for information extraction , the data treatment, and other implementation and maintenance aspects. GIAS Web expands on GIAS 1.0 by developing functions for its use on the Web through the use of the Scalable Vector Graphics (SVG) standard, suitable for Web based GIS development. We present and discuss several aspects GIAS Web, comparing both approaches. Applications of GIAS 1.0 and GIAS Web to industrialized and environmental areas are presented.